Patents Act 1949
| Jurisdiction | UK Non-devolved |
| Citation | 1949 c. 87 |
| Year | 1949 |
Patents Act , 1949
(12, 13 & 14 Geo. 6) CHAPTER 87
An Act to consolidate certain enactments relating to patents.
[16th December 1949]
Be it enacted by the King's most Excellent Majesty, by and with the advice and consent of the Lords Spiritual and Temporal, and Commons, in this present Parliament assembled, and by the authority of the same, as follows:—
Application, investigation, opposition, etc.
1 Persons entitled to make application.
(1) An application for a patent for an invention may be made by any of the following persons, that is to say:—
(a ) by any person claiming to be the true and first inventor of the invention;
(b ) by any person being the assignee of the person claiming to be the true and first inventor in respect of the right to make such an application;
and may be made by that person either alone or jointly with any other person.
(2) Without prejudice to the foregoing provisions of this section, an application for a patent for an invention in respect of which protection has been applied for in a convention country may be made by the person by whom the application for protection was made or by the assignee of that person:
Provided that no application shall be made by virtue of this subsection after the expiration of twelve months from the date of the application for protection in a convention country or, where more than one such application for protection has been made, from the date of the first application.
(3) An application for a patent may be made under subsection (1) or subsection (2) of this section by the personal representative of any deceased person who, immediately before his death, was entitled to make such an application.
(4) An application for a patent made by virtue of subsection (2) of this section is in this Act referred to as a convention application.
2 Application.
(1) Every application for a patent shall be made in the prescribed form and shall be filed at the Patent Office in the prescribed manner.
(2) If the application (not being a convention application) is made by virtue of an assignment of the right to apply for a patent for the invention, there shall be furnished with the application or within such period as may be prescribed after the filing of the application a declaration, signed by the person claiming to be the true and first inventor or his personal representative, stating that he assents to the making of the application.
(3) Every application (other than a convention application) shall state that the applicant is in possession of the invention and shall name the person claiming to be the true and first inventor; and where the person so claiming is not the applicant or one of the applicants, the application shall contain a declaration that the applicant believes him to be the true and first inventor.
(4) Every convention application shall specify the date on which and the convention country in which the application for protection, or the first such application, was made, and shall state that no application for protection in respect of the invention had been made in a convention country before that date by the applicant or any person from whom he derives title.
(5) Where applications for protection have been made in one or more convention countries in respect of two or more inventions which are cognate or of which one is a modification of another, a single convention application may, subject to the provisions of section four of this Act, be made in respect of those inventions at any time within twelve months from the date of the earliest of the said applications for protection:
Provided that the fee payable on the making of any such application shall be the same as if separate applications had been made in respect of each of the said inventions; and the requirements of the last foregoing subsection shall in the case of any such application apply separately to the applications for protection in respect of each of the said inventions.
3 Complete and provisional specifications.
(1) Every application for a patent (other than a convention application) shall be accompanied by either a complete specification or a provisional specification; and every convention application shall be accompanied by a complete specification.
(2) Where an application for a patent is accompanied by a provisional specification, a complete specification shall be filed within twelve months from the date of filing of the application and if the complete specification is not so filed the application shall be deemed to be abandoned:
Provided that the complete specification may be filed at any time after twelve months but within fifteen months from the date aforesaid if a request to that effect is made to the comptroller and the prescribed fee paid on or before the date on which the specification is filed.
(3) Where two or more applications accompanied by provisional specifications have been filed in respect of inventions which are cognate or of which one is a modification of another, a single complete specification may, subject to the provisions of this and the next following section, be filed in pursuance of those applications, or, if more than one complete specification has been filed, may with the leave of the comptroller be proceeded with in respect of those applications.
(4) Where an application for a patent (not being a convention application) is accompanied by a specification purporting to be a complete specification, the comptroller may, if the applicant so requests at any time before the acceptance of the specification, direct that it shall be treated for the purposes of this Act as a provisional specification, and proceed with the application accordingly.
(5) Where a complete specification has been filed in pursuance of an application for a patent accompanied by a provisional specification or by a specification treated by virtue of a direction under the last foregoing subsection as a provisional specification, the comptroller may, if the applicant so requests at any time before the acceptance of the complete specification, cancel the provisional specification and post-date the application to the date of filing of the complete specification.
4 Contents of specification.
(1) Every specification, whether complete or provisional, shall describe the invention, and shall begin with a title indicating the subject to which the invention relates.
(2) Subject to any rules made by the Board of Trade under this Act, drawings may, and shall if the comptroller so requires, be supplied for the purposes of any specification, whether complete or provisional; and any drawings so supplied shall, unless the comptroller otherwise directs, be deemed to form part of the specification, and references in this Act to a specification shall be construed accordingly.
(3) Every complete specification—
(a ) shall particularly describe the invention and the method by which it is to be performed;
(b ) shall disclose the best method of performing the invention which is known to the applicant and for which he is entitled to claim protection; and
(c ) shall end with a claim or claims defining the scope of the invention claimed.
(4) The claim or claims of a complete specification must relate to a single invention, must be clear and succinct, and must be fairly based on the matter disclosed in the specification.
(5) Rules made by the Board of Trade under this Act may require that in such cases as may be prescribed by the rules, a declaration as to the inventorship of the invention, in such form as may be so prescribed, shall be furnished with the complete specification or within such period as may be so prescribed after the filing of that specification.
(6) Subject to the foregoing provisions of this section, a complete specification filed after a provisional specification, or filed with a convention application, may include claims in respect of developments of or additions to the invention which was described in the provisional specification or, as the case may be, the invention in respect of which the application for protection was made in a convention country, being developments or additions in respect of which the applicant would be entitled under the provisions of section one of this Act to make a separate application for a patent.
(7) Where a complete specification claims a new substance, the claim shall be construed as not extending to that substance when found in nature.
5 Priority date of claims of complete specification.
(1) Every claim of a complete specification shall have effect from the date prescribed by this section in relation to that claim (in this Act referred to as the priority date); and a patent shall not be invalidated by reason only of the publication or use of the invention, so far as claimed in any claim of the complete specification, on or after the priority date of that claim, or by the grant of another patent upon a specification claiming the same invention in a claim of the same or later priority date.
(2) Where the complete specification is filed in pursuance of a single application accompanied by a provisional specification or by a specification which is treated by virtue of a direction under subsection (4) of section three of this Act as a provisional specification, and the claim is fairly based on the matter disclosed in that specification, the priority date of that...
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