Granted Patent
Utility
US 5,340,969 · App. 07/771,261
Method and apparatus for approving transaction card based transactions
Inventor:
Tim Cox
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Oct 1, 1991
Inventor
Tim Cox
Assignee (at issue)
Dresser Industries, 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.