Granted Patent
Utility
US 5,020,901 · App. 07/472,973
Multimode laser diode system for range measurement
Inventor:
Peter De Groot
Patented Case
View Patent ↗
Granted: Jun 4, 1991
Filed: Jan 30, 1990
Inventor
Peter De Groot
Assignee (at issue)
PerkinElmer, 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.