Granted Patent
Utility
US 4,803,497 · App. 07/091,681
Laser diode output power stabilization in a laser imagesetter
Inventors:
John Kennedy, Walter Hansen
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Aug 31, 1987
Inventors
John Kennedy
Walter Hansen
Assignee (at issue)
Dr. Ing. Rudolf Hell GmbH
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.