Granted Patent
Utility
US 5,201,336 · App. 07/833,150
Fire safe valve
Inventors:
William M. Taylor, Gerald S. Baker
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Feb 10, 1992
Inventors
William M. Taylor
Gerald S. Baker
Assignee (at issue)
Cooper Industries Holdings
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.