Granted Patent
Utility
US 4,286,750 · App. 06/160,063
Thermostatic valve device having non-linear flow characteristics
Inventors:
Backman Wong, Earl L. Wilson
Patented Case
View Patent ↗
Granted: Sep 1, 1981
Filed: Jun 16, 1980
Inventors
Backman Wong
Earl L. Wilson
Assignee (at issue)
Standard-Thomson 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.