Granted Patent
Utility
US 5,332,315 · App. 07/873,944
Apparatus and sensor unit for monitoring changes in a physical quantity with time
Inventors:
John F. Baker, John M. Phillips
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Apr 27, 1992
Inventors
John F. Baker
John M. Phillips
Assignees (at issue)
GEC Avery Limited
Industrial Electronic Automation Limited
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.