Granted Patent
Utility
US 4,230,023 · App. 05/857,790
Clamping apparatus
Inventor:
Charles W. Ward
Patented Case
View Patent ↗
Granted: Oct 28, 1980
Filed: Dec 5, 1977
Inventor
Charles W. Ward
Assignee (at issue)
Scovill Manufacturing 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.