Granted Patent
Utility
US 5,619,972 · App. 08/674,892
Demand pressure regulator
Inventors:
Ronald B. Kuenzli, Charles H. Tuckey
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Jul 3, 1996
Inventors
Ronald B. Kuenzli
Charles H. Tuckey
Assignee (at issue)
WALBRO LLC
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.