135. Convention applications
(1) Where a person has filed a basic application for an invention in a convention country, and he (or his legal representative/assignee) files an Indian application within twelve months of the basic application, the priority date of a complete-specification claim based on matter disclosed in the basic application is the date of the basic application.
Explanation: Where similar protection was sought in two or more convention countries, the twelve-month period runs from the earliest such application.
(2) Where protection was sought in one or more convention countries for two or more cognate or related inventions, a single convention application may be made for all of them within twelve months of the earliest application, subject to section 10, with fees payable as if separate applications had been made.
(3) For a PCT application designating India that claims priority from an earlier Indian application, that earlier application is treated as the basic application; a request for examination under section 11B need be made for only one of the Indian applications.
