Granted Patent
Utility
US 4,701,725 · App. 06/869,176
Radio frequency signal coupler
Inventor:
Denis P. Dorsey
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: May 30, 1986
Inventor
Denis P. Dorsey
Assignee (at issue)
RCA 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.