Granted Patent
Utility
US 4,992,761 · App. 07/453,204
Passive 180 degree broadband MMIC hybrid
Inventors:
Warren L. Seely, Joseph Staudinger
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Dec 26, 1989
Inventors
Warren L. Seely
Joseph Staudinger
Assignee (at issue)
Motorola, 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.