Granted Patent
Utility
US 4,679,580 · App. 06/877,603
Vapor vent control valve
Inventors:
Jeffrey Devall, Ronald E. Reinke
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Jun 23, 1986
Inventors
Jeffrey Devall
Ronald E. Reinke
Assignee (at issue)
Borg-Warner Automotive, Inc.
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.