Granted Patent
Utility
US 4,090,139 · App. 05/774,274
Complementary symmetry FET mixer circuits
Inventor:
Merle V. Hoover
Patented Case
View Patent ↗
Granted: May 16, 1978
Filed: Mar 4, 1977
Inventor
Merle V. Hoover
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.