Granted Patent
Utility
US 4,342,529 · App. 06/224,916
Multigrip fastener
Inventor:
Walter John Smith
Patented Case
View Patent ↗
Granted: Aug 3, 1982
Filed: Jan 14, 1981
Inventor
Walter John Smith
Assignee (at issue)
Huck Manufacturing Co.
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.