Granted Patent
Utility
US 3,967,188 · App. 05/604,620
Temperature compensation circuit for sensor of physical variables such as temperature and pressure
Inventor:
William H. Spencer
Patented Case
View Patent ↗
Granted: Jun 29, 1976
Filed: Aug 14, 1975
Inventor
William H. Spencer
Assignee (at issue)
Bell and Howell, LLC
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.