Granted Patent
Utility
US 4,403,469 · App. 06/365,282
Combine tooth and mounting therefor
Inventor:
Walter Hofer
Patented Case
View Patent ↗
Granted: Sep 13, 1983
Filed: Apr 5, 1982
Inventor
Walter Hofer
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.