Granted Patent
Utility
US 4,108,032 · App. 05/747,941
Multiple blade scrap saw for pipe mill
Inventors:
William R. Scheib, Ralph M. Shaffer, Jr.
Patented Case
View Patent ↗
Granted: Aug 22, 1978
Filed: Dec 6, 1976
Inventors
William R. Scheib
Ralph M. Shaffer, Jr.
Assignee (at issue)
Aetna-Standard Engineering Company
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.