Granted Patent
Utility
US 5,099,804 · App. 07/751,400
Pressure relief device for cooling systems
Inventor:
Richard F. Creeron
Patented Case
View Patent ↗
Granted: Mar 31, 1992
Filed: Aug 28, 1991
Inventor
Richard F. Creeron
Assignee (at issue)
First Brands 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.