Granted Patent
Utility
US 4,947,037 · App. 07/337,088
Optical sensing system with light pulses
Inventors:
Philip Nash, Christopher Lamb
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Apr 12, 1989
Inventors
Philip Nash
Christopher Lamb
Assignee (at issue)
Plessey Overseas Limited
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.