Granted Patent
Utility
US 4,897,664 · App. 07/201,972
Image plate/short backfire antenna
Inventors:
Henry T. Killackey, Julia MARTIN
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Jun 3, 1988
Inventors
Henry T. Killackey
Julia MARTIN
Assignee (at issue)
General Dynamics Corp., Pomona 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.