Granted Patent
Utility
US 4,467,664 · App. 06/306,208
Timer drive mechanism
Inventors:
John Willigman, Guy A. Wojtanek
Patented Case
View Patent ↗
Granted: Aug 28, 1984
Filed: Sep 28, 1981
Inventors
John Willigman
Guy A. Wojtanek
Assignee (at issue)
The Singer Company 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.