Is a daytime telephone number required for patent applications filed before September 16, 2012?

While not strictly required, the USPTO recommends providing a daytime telephone number for patent applications filed before September 16, 2012. According to MPEP 403.01(b): Pre-AIA 37 CFR 1.33(a) requests the submission of a daytime telephone number of the party to whom correspondence is to be addressed. While business is to be conducted on the written…

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Is a daytime telephone number required in patent applications?

While not strictly required, the USPTO recommends providing a daytime telephone number in patent applications. According to MPEP 601.03(b): “The submission of a daytime telephone number of the party to whom correspondence is to be addressed is requested pursuant to pre-AIA 37 CFR 1.33(a).” The MPEP further explains: “While business is to be conducted on…

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