Granted Patent
Utility
US 6,437,639 · App. 09/618,455
Programmable RC filter
Inventors:
Thanh Van Nguyen, Hashem Farrokh
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Jul 18, 2000
Inventors
Thanh Van Nguyen
Hashem Farrokh
Assignee (at issue)
LUCENT TECHNOLOGIES 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.