Granted Patent
Utility
US 4,657,408 · App. 06/457,820
Base element for a wristwatch
Inventors:
Joseph Egger, Adolf Sedlak
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Jan 13, 1983
Inventors
Joseph Egger
Adolf Sedlak
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.