Granted Patent
Utility
US 4,279,413 · App. 06/085,521
Drive mechanisms for passbooks
Inventors:
Henry A. Siwik, Lawrence P. Kobylarz
Patented Case
View Patent ↗
Granted: Jul 21, 1981
Filed: Oct 17, 1979
Inventors
Henry A. Siwik
Lawrence P. Kobylarz
Assignee (at issue)
Burroughs, Inc.
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.