404. Limits of licence.

A licence granted under a patent1 may be limited as to persons, time, place, manufacture, use or sale2. If the licence is limited, proceedings for infringement of the patent will lie against the licensee for acts done outside the ambit of the licence3. A sole licence is one by which the proprietor of the patent agrees to grant no other licence for the technical field concerned within the licensed district during the currency of the licence, and, if the proprietor also agrees that he will not himself exercise the invention in that technical field either generally or within the