Granted Patent
Utility
US 4,756,602 · App. 07/058,495
Narrowband optical filter with partitioned cavity
Inventors:
William H. Southwell, William J. Gunning, III
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Jun 5, 1987
Inventors
William H. Southwell
William J. Gunning, III
Assignee (at issue)
Rockwell International Corporation
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.