Granted Patent
Utility
US 5,649,288 · App. 08/468,019
Dual-function double balanced mixer circuit
Inventors:
John P. De Loe, Jr., He Wang
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Jun 6, 1995
Inventors
John P. De Loe, Jr.
He Wang
Assignee (at issue)
Oki Telecom, 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.