Granted Patent
Utility
US 4,364,683 · App. 06/333,958
Paper feed roller assembly for a typewriter or printer
Inventors:
Iraj D. Shakib, Krikor Yosmali
Patented Case
View Patent ↗
Granted: Dec 21, 1982
Filed: Dec 23, 1981
Inventors
Iraj D. Shakib
Krikor Yosmali
Assignee (at issue)
International Business Machines Corporation
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.