Granted Patent
Utility
US 4,345,845 · App. 06/275,183
Drive circuit for thermal printer
Inventors:
Alan E. Bohnhoff, Bruce M. Cassidy, Stanley Dyer
Patented Case
View Patent ↗
Granted: Aug 24, 1982
Filed: Jun 19, 1981
Inventors
Alan E. Bohnhoff
Bruce M. Cassidy
Stanley Dyer
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.