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715.10 Review of Affidavit or Declaration for Evidence of Prior Public Use or Sale or Failure to Disclose Best Mode - 700 Examination of Applications
715.10 Review of Affidavit or Declaration for Evidence of Prior Public Use or Sale or Failure to Disclose Best Mode
Any affidavits or declarations submitted under 37 CFR 1.131 and the accompanying evidence must be reviewed carefully by the examiner in order to determine whether they show that the claimed invention was "in public use" or "on sale" in this country more than one year prior to the effective filing date of the application, which acts constitute a statutory bar under 35 U.S.C. 102(b). Although the rejection based on the reference(s) or activity sought to be antedated may actually be overcome by such an affidavit or declaration, the effect of the applicant's prior "public use" or "on sale" activities may not be overcome under 37 CFR 1.131. See MPEP § 2133.03 regarding rejections based on "public use" and "on sale" statutory bars.
Where the 37 CFR 1.131 evidence relies on an embodiment of the invention not disclosed in the application, the question of whether the application includes the "best mode" must be considered. However, a "best mode" rejection should not be made unless the record, taken as a whole, establishes by a preponderance of the evidence that applicant"s specification has not set forth the best mode contemplated by the inventor of carrying out the invention. See MPEP § 2165 - § 2165.04 regarding the best mode requirement of the first paragraph of 35 U.S.C. 112.
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