Granted Patent
Utility
US 4,110,280 · App. 05/649,963
Method for preparing extruded fasteners
Inventor:
William C. Hedges
Patented Case
View Patent ↗
Granted: Aug 29, 1978
Filed: Jan 19, 1976
Inventor
William C. Hedges
Assignee (at issue)
Star Manufacturing Company of Oklahoma
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.