Granted Patent
Utility
US 5,223,849 · App. 07/177,518
Broadband electromagnetic energy absorber
Inventors:
Raymond S. Kasevich, John F. Broderick
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Apr 11, 1988
Inventors
Raymond S. Kasevich
John F. Broderick
Assignee (at issue)
Chomerics, Inc.
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.