Granted Patent
Utility
US 5,906,157 · App. 09/073,883
High speed impact print hammer
Inventor:
Ali T. Mazumder
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: May 6, 1998
Inventor
Ali T. Mazumder
Assignee (at issue)
BancTec, Incorporated
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.