Granted Patent
Utility
US 6,674,850 · App. 09/757,735
Call processing digit translation and characterization
Inventors:
Joe Q. Vu, Matthew Christopher Perry
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Jan 9, 2001
Inventors
Joe Q. Vu
Matthew Christopher Perry
Assignee (at issue)
Santera Systems, LLC
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.