Granted Patent
Utility
US 5,109,603 · App. 07/777,853
Method of waterproof sealing a lead from a pressure or temperature responsive switch
Inventor:
Henry J. Boulanger
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Oct 16, 1991
Inventor
Henry J. Boulanger
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.