Granted Patent
Utility
US 5,589,042 · App. 08/336,592
System and method for fabrication of precision optical ramp filters
Inventors:
Klaus Robinson, Hugh L. Garvin
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Nov 8, 1994
Inventors
Klaus Robinson
Hugh L. Garvin
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.