Under the Patents Act, 1970, which situation prevents a patent application from being published even after the expiry of the prescribed period?
Explanation & Strategy
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Under Section 35 of the Patents Act, when a secrecy direction is imposed by the Controller (on directions from the Central Government for defence purposes), the patent application cannot be published. The secrecy direction overrides the normal publication timeline — even after 18 months from filing, the application remains unpublished while secrecy direction is in force.