Standard of proof
Defined in 1 dictionary — Case Law
Definitions from Case Law
From 216 U.S. 504 - McCaskill Company v. United States · 1910Most cited · 250 citing opinions
when a court of equity is asked to set aside a patent 'for fraud or mistake . . . the testimony on which this is done must be clear, unequivocal, and convincing, and that it cannot be done upon a bare preponderance of evidence which leaves the issue in doubt.