Granted Patent
Utility
US 4,214,343 · App. 06/014,072
Arm adaptor for hook-type blade
Inventor:
Dennis A. Dudek
Patented Case
View Patent ↗
Granted: Jul 29, 1980
Filed: Feb 22, 1979
Inventor
Dennis A. Dudek
Assignee (at issue)
The Anderson Company of Indiana
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.