Granted Patent
Utility
US 4,590,791 · App. 06/544,386
Self calibrating pressure transducer
Inventors:
Charles J. Reed, Henry R. Heit
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Oct 21, 1983
Inventors
Charles J. Reed
Henry R. Heit
Assignee (at issue)
Ametek, 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.