Granted Patent
Utility
US 5,949,863 · App. 09/127,699
Coin operated telephone auditor
Inventor:
John L. Tansky
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Jul 31, 1998
Inventor
John L. Tansky
Assignee (at issue)
Mars, Incorporated
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.