Granted Patent
Utility
US 6,345,095 · App. 09/291,213
Telephone number area code preprocessor
Inventor:
Robert Yamartino
Patented Case
View Patent ↗
Granted: Feb 5, 2002
Filed: Apr 14, 1999
Inventor
Robert Yamartino
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.