Granted Patent
Utility
US 4,357,726 · App. 06/257,200
Method of making self-locking nut
Inventor:
Paul A. Trimmer
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: Apr 24, 1981
Inventor
Paul A. Trimmer
Assignee (at issue)
ARTERICA INC.
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.