Granted Patent
Utility
US 6,757,377 · App. 09/318,279
Central office filter system and method
Inventors:
Thomas J. Bingel, Ramon B. Hazen
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: May 25, 1999
Inventors
Thomas J. Bingel
Ramon B. Hazen
Assignee (at issue)
PARADYNE 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.