Granted Patent
Utility
US 4,174,457 · App. 05/851,989
Carbamate
Inventors:
Julian R. Little, Walter Nudenberg, Yong S. Rim
Patented Case
View Patent ↗
Granted: Nov 13, 1979
Filed: Nov 16, 1977
Inventors
Julian R. Little
Walter Nudenberg
Yong S. Rim
Assignee (at issue)
Uniroyal Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.