HC Deb 23 November 1953 vol 521 cc10-1W
Sir D. Campbell

asked the President of the Board of Trade the limits to the extensions of time for filing evidence or taking other steps in proceedings which may be granted by the Comptroller of the Patent Office to opponents of applications for patents; and what remedy for, or right of appeal, applicants have against delays so caused.

Mr. P. Thorneycroft

No limits are prescribed for extensions of time allowed by the Comptroller to either party in proceedings in opposition to the grant of a patent. The Comptroller allows such extensions as seem reasonable in the circumstances of each case, and there is no provision for any appeal against his decision to allow an extension. Although extensions delay the grant of the patent, the applicant is not debarred, once the patent is granted, from recovering damages for infringements which occurred whilst the opposition proceedings were in progress.