Granted Patent
Utility
US 5,726,793 · App. 08/555,861
Polygonal mirror optical scanning system
Inventors:
John D. Boardman, James R. Boyd, Jeffrey P. Welch
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Nov 13, 1995
Inventors
John D. Boardman
James R. Boyd
Jeffrey P. Welch
Assignee (at issue)
E-Systems, 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.