Granted Patent
Utility
US 4,424,699 · App. 06/235,026
Tube bender construction
Inventor:
Henry J. Peppers
Patented Case
View Patent ↗
Granted: Jan 10, 1984
Filed: Feb 17, 1981
Inventor
Henry J. Peppers
Assignee (at issue)
Imperial Clevite Inc.
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.