Granted Patent
Utility
US 4,728,343 · App. 06/884,580
Absorption of hydrocarbon vapors by vulcanized rubber
Inventor:
Robert H. Snyder
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: Jul 11, 1986
Inventor
Robert H. Snyder
Assignee (at issue)
The Uniroyal Goodrich Tire 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.