Granted Patent
Utility
US 6,661,634 · App. 10/042,672
Digital subscriber line alternating current EMI/RFI broadband noise eliminator
Inventors:
John A. Roberts, Bruce A. Phillips, Carlton Francis Scott Schneider
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Jan 8, 2002
Inventors
John A. Roberts
Bruce A. Phillips
Carlton Francis Scott Schneider
Assignee (at issue)
Qwest Communications International 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.