Granted Patent
Utility
US 5,821,721 · App. 08/837,817
Motor control system especially for control of an optical scanner
Inventors:
Raymond J. Boyd, Edward C. Bremer
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Apr 22, 1997
Inventors
Raymond J. Boyd
Edward C. Bremer
Assignee (at issue)
PSC, 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.