Granted Patent
Utility
US 4,889,463 · App. 07/180,846
Slip sheet removal apparatus
Inventors:
Terry M. Frost, Terry B. Smith, Charles D. Vensel
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Apr 12, 1988
Inventors
Terry M. Frost
Terry B. Smith
Charles D. Vensel
Assignee (at issue)
ASC Machine Tools, 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.