The patent is not granted to an invention as such. A standard patent lasts for twenty years - a petty patent for twelve months which can be extended for a further period of up to six years. Infringements and Remedies Proceedings for infringement can be brought either by the patentee or an exclusive licensee. The court can grant an injunction and enter damages or an account for profits. It can refuse damages or an account of profits if it is satisfied that the defendant was unaware of the existence of the patent.
Registration is for seven years but indefinite renewal for fourteen years is possible.
The Act permits the Registrar to remove the mark from the Register if it is not used for three years without good reason or if it was registered in bad faith.