Granted Patent
Utility
US 6,478,708 · App. 09/739,302
Electrically controllable biasing differential
Inventor:
James A. Krisher
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Dec 19, 2000
Inventor
James A. Krisher
Assignee (at issue)
Spicer Technology 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.