Granted Patent
Utility
US 4,665,371 · App. 06/886,857
Character spacing circuit for controlling print hammer firing
Inventor:
Ali T. Mazumder
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Jul 18, 1986
Inventor
Ali T. Mazumder
Assignee (at issue)
NCR 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.