Granted Patent
Utility
US 5,606,989 · App. 08/455,678
Self-venting valve arrangement
Inventors:
Mark A. Roll, Willie L. Stamey, Jr., Christopher L. Loafman
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Jun 1, 1995
Inventors
Mark A. Roll
Willie L. Stamey, Jr.
Christopher L. Loafman
Assignee (at issue)
DANA LIMITED
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.