Granted Patent
Utility
US 4,512,723 · App. 06/542,493
Pressure limiter
Inventor:
Keith R. Williams
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Oct 17, 1983
Inventor
Keith R. Williams
Assignee (at issue)
Sundstrand 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.