Section 8
Term Of Patent
(1) The title of the patentee to the patent shall be
valid only for a period of seven years from the date of registration
thereof under Section 7, except when it is renewed under Section 23 B.
(2) Notwithstanding, anything contained in Sub-Section (1),in the case
of patent registered before the commencement of this Section, the term
fixed according to the provision in force at the time of registration thereof shall
be valid After the expiry of that term, the patent must be renewed under Section 23B.
valid only for a period of seven years from the date of registration
thereof under Section 7, except when it is renewed under Section 23 B.
(2) Notwithstanding, anything contained in Sub-Section (1),in the case
of patent registered before the commencement of this Section, the term
fixed according to the provision in force at the time of registration thereof shall
be valid After the expiry of that term, the patent must be renewed under Section 23B.