Granted Patent
Utility
US 4,395,135 · App. 06/375,412
Optional alarm and battery backup system for a talking timepiece
Inventor:
Richard Frantz
Patented Case
View Patent ↗
Granted: Jul 26, 1983
Filed: May 6, 1982
Inventor
Richard Frantz
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.