Granted Patent
Utility
US 4,318,540 · App. 06/111,804
Constant spacing document feeder
Inventors:
Eugene E. Paananen, Mark Casper, Chung-Hang Peng
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Jan 14, 1980
Inventors
Eugene E. Paananen
Mark Casper
Chung-Hang Peng
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.