Granted Patent
Utility
US 4,281,429 · App. 06/093,015
Method for making fasteners
Inventor:
Jaak S. Van den Sype
Patented Case
View Patent ↗
Granted: Aug 4, 1981
Filed: Nov 9, 1979
Inventor
Jaak S. Van den Sype
Assignee (at issue)
Union Carbide Corporation
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.