Granted Patent
Utility
US 4,454,419 · App. 06/370,398
Photo-optical snap-on paper path sensor
Inventors:
Emmett B. Peter, III, Michael K. O'Brien
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Apr 21, 1982
Inventors
Emmett B. Peter, III
Michael K. O'Brien
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.