Granted Patent
Utility
US 4,309,892 · App. 06/145,158
Crimping machine
Inventor:
William E. Currie
Patented Case
View Patent ↗
Granted: Jan 12, 1982
Filed: Apr 30, 1980
Inventor
William E. Currie
Assignee (at issue)
Parker-Hannifin 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.