Granted Patent
Utility
US 4,783,000 · App. 07/098,094
Temperature responsive flow control valve apparatus
Inventor:
Henry Ty
Patented Case
View Patent ↗
Granted: Nov 8, 1988
Filed: Sep 17, 1987
Inventor
Henry Ty
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.