https://www.epo.org/en/service-support/faq/searching-patents/asian-patent-information/india/filing-grant/what-provisional
What is a provisional specification in India?
Provisional specifications can be used to secure a priority date for an application. They describe the nature of the invention without claims, and should contain the title and description of the invention. A full specification, including claims and an abstract, must be submitted within 12 months of the provisional filing.
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