Granted Patent
Utility
US 4,149,559 · App. 05/877,655
Pressure regulator
Inventor:
Alex Wormser
Patented Case
View Patent ↗
Granted: Apr 17, 1979
Filed: Feb 14, 1978
Inventor
Alex Wormser
Assignee (at issue)
Wingaersheek, 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.