Granted Patent
Utility
US 4,837,044 · App. 07/006,661
Rugate optical filter systems
Inventors:
Narayan P. Murarka, Kent J. Kogler, Craig S. Bartholomew, Howard T. Betz, Richard J. Harris
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Jan 23, 1987
Inventors
Narayan P. Murarka
Kent J. Kogler
Craig S. Bartholomew
Howard T. Betz
Richard J. Harris
Assignee (at issue)
ITT Research Institute
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.