Granted Patent
Utility
US 4,881,881 · App. 07/153,179
Plug-resistant arch-vents for a tire mold
Inventors:
Rene L. Rockarts, Donald R. Bartley
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Feb 8, 1988
Inventors
Rene L. Rockarts
Donald R. Bartley
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.