Granted Patent
Utility
US 5,183,116 · App. 07/728,358
Variable pressure regulator for extended fire-extinguishing system
Inventor:
William Fleming
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Jul 11, 1991
Inventor
William Fleming
Assignee (at issue)
Walter Kidde Aerospace, 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.