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What are Patents

What is an Invention Patent Prosecution in India Publication of Patent Application in India: Pre- Grant Opposition of Patent Application in India: Examination of Patent Application in India: Grant of Patent in India Post Grant Opposition of Patent in India Duration of Patent and Renewal in India Statement as to working of Patent in India Licensing and Assignment of Patents in India Patent offices in India Discount in Official Fee for Patents in India Categories of Applicant in India: What are Patentable Inventions Patents in India Ordinary Patent Application in India Convention Patent Application in India PCT National Phase Patent Application Provisional Specification in India: Complete Specification in India: Divisional Patent Application in India: Patent of Addition in India: Compulsory Licensing for Patents in India
 

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Duration of Patent and Renewal in India

Duration of Patent and Renewal in India 

Duration of Patent is 20 years from date of filing in India for ordinary as well as conventional patent applications and for PCT national phase patent applications 20 years from date of filing of International PCT application.  After grant of patent renewal fee has to be paid in respect of 3rd year onwards till the 20th year and must be paid before the expiration of respective years. The patent shall be revoked if renewal fee is not paid in prescribed time and during the period between the revocation of patent till it is restored, the patentee cannot take any action against any infringement of patent by anyone.