Granted Patent
Utility
US 4,314,255 · App. 06/138,324
Electromagnetic angle filter including two staggered, identical, periodically perforated conductive plates
Inventor:
Thomas W. Kornbau
Patented Case
View Patent ↗
Granted: Feb 2, 1982
Filed: Apr 8, 1980
Inventor
Thomas W. Kornbau
Assignee (at issue)
General Dynamics Corporation, Electronics Division
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.