Granted Patent
Utility
US 4,529,770 · App. 06/543,706
Vulcanizable polymeric compositions containing zinc dimethacrylate and fillers
Inventors:
Robert A. Hayes, Wendell R. Conard
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Oct 20, 1983
Inventors
Robert A. Hayes
Wendell R. Conard
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.