Granted Patent
Utility
US 5,004,876 · App. 07/286,726
Pressure responsive switch particularly adaptable for operation as a normally open or a normally closed switch
Inventors:
Dale R. Sogge, Edward F. O'Brien, David A. Czarn
Patented Case
View Patent ↗
Granted: Apr 2, 1991
Filed: Dec 20, 1988
Inventors
Dale R. Sogge
Edward F. O'Brien
David A. Czarn
Assignee (at issue)
Texas Instruments Incorporated
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.