Granted Patent
Utility
US 5,274,479 · App. 07/922,455
Mirror alignment and/or figure sensing with surface mounted holographic optical elements
Inventors:
William Zmek, Gon-Yen Shen
Patented Case
View Patent ↗
Granted: Dec 28, 1993
Filed: Jul 30, 1992
Inventors
William Zmek
Gon-Yen Shen
Assignee (at issue)
Hughes Aircraft Company
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.