(1)A patent granted to the true and first inventor shall not be invalidated by an application in fraud of him, or by provisional protection obtained thereon, or by any use or publication of the invention subsequent to that fraudulent application during the period of provisional protection.
(2)Where a patent has been revoked on the ground of fraud, the comptroller may, on the application of the true inventor made in accordance with the provisions of this Act, grant to him a patent in lieu of and bearing the same date as the patent so revoked :
Provided that no action shall be brought for any infringement of the patent so granted committed before the actual date when such patent was granted.