Granted Patent
Utility
US 4,279,028 · App. 06/083,434
Watch with barometric pressure indicator
Inventors:
John R. Lowdenslager, Alan E. Willis
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Oct 10, 1979
Inventors
John R. Lowdenslager
Alan E. Willis
Assignee (at issue)
Timex 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.