Granted Patent
Utility
US 5,129,642 · App. 07/654,278
Controllable document drive and separation system
Inventors:
Eduard Svyatsky, Thomas Faber
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: Mar 4, 1991
Inventors
Eduard Svyatsky
Thomas Faber
Assignee (at issue)
Bell and Howell, LLC
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.