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Patent opposition

There are two stages when a Patent Opposition can be filed, one before grant of patent and another after a patent is granted.

India Pre-grant Opposition can be filed after the publication of the patent application in the Patent Journal but before grant of a patent. The Patent Act mandates that a Patent shall not be granted before the expiry of 6 months from the date of publication in the journal. This rule is to ensure that there is a minimum window of 6 months for pre-grant opposition.

India Post –grant Opposition
can be filed after the grant of a patent but before the expiry of one year from date of grant.

The Opposition must be filed at the appropriate office along with a statement and evidence in support of the opposition. Patent Oppositions are a highly specialised proceeding and care must be taken in drafting notices.
For any assistance in Patent Opposition at Chennai, please call 98410 78077 or email : senthil@chennaitrademark.com

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