Granted Patent
Utility
US 3,959,901 · App. 05/591,593
High strength earth working penetration tooth
Inventor:
Gene R. Klett
Patented Case
View Patent ↗
Granted: Jun 1, 1976
Filed: Jun 30, 1975
Inventor
Gene R. Klett
Assignee (at issue)
Caterpillar Tractor 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.