U.S. Supreme Court
Beidler v. United States, 253 U.S. 447 (1920)
Beidler v. United States
Argued April 27, 28, 1920
Decided June 7, 1920
253 U.S. 447
Patent No. 1,057,397, granted to George C. Beidler, March 25, 1913, for an improvement in photographing and developing apparatus, doe not contain a description of the claimed discovery adequate to render it useful, and is therefore invalid for failure to disclose a practical invention.
53 Ct.Clms. 36 affirmed.
The case is stated in the opinion.