Granted Patent
Utility
US 4,403,533 · App. 06/286,229
High accuracy slitter system
Inventors:
Ernest R. Cox, Duane E. Snyder, Jr.
Patented Case
View Patent ↗
Granted: Sep 13, 1983
Filed: Jul 23, 1981
Inventors
Ernest R. Cox
Duane E. Snyder, Jr.
Assignee (at issue)
The Firestone Tire & Rubber 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.