Granted Patent
Utility
US 4,616,068 · App. 06/750,955
Polyamine treated guayule resin and rubber compositions containing the same
Inventors:
William W. Schloman, Jr., James A. Davis
Patented Case
View Patent ↗
Granted: Oct 7, 1986
Filed: Jul 2, 1985
Inventors
William W. Schloman, Jr.
James A. Davis
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.