Granted Patent
Utility
US 4,451,731 · App. 06/291,666
Apparatus and method for modulating light to generate an index pulse
Inventor:
Mark Leonard
Patented Case
View Patent ↗
Granted: May 29, 1984
Filed: Aug 10, 1981
Inventor
Mark Leonard
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.