What is the significance of 37 CFR 1.131(a) affidavits or declarations in establishing invention dates?

37 CFR 1.131(a) affidavits or declarations are important tools for establishing invention dates under pre-AIA law. The MPEP 715.07(c) states: “The 37 CFR 1.131(a) affidavit or declaration must contain an allegation that the acts relied upon to establish the date prior to the reference or activity were carried out in this country or in a…

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