Granted Patent
Utility
US 5,322,217 · App. 07/875,447
Vehicle heating system and bypass therefor
Inventors:
Robert L. Brocx, Donald L. Bucey
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Apr 29, 1992
Inventors
Robert L. Brocx
Donald L. Bucey
Assignee (at issue)
Red Dot Corporation
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.