What is the purpose of an affidavit or declaration under 37 CFR 1.131(a)?
An affidavit or declaration under 37 CFR 1.131(a) serves the purpose of overcoming a prior art reference by establishing that the inventor completed the invention before the effective date of the reference. This is commonly known as ‘swearing behind’ a reference.
The MPEP states:
‘The purpose of a 37 CFR 1.131(a) affidavit or declaration is to overcome a prior art rejection under pre-AIA 35 U.S.C. 102 or 103 by proving invention of the claimed subject matter by the inventor or at least one joint inventor prior to the effective date of the reference or activity relied upon in the rejection.’
This process allows inventors to establish their priority of invention and potentially overcome rejections based on prior art references.
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