Granted Patent
Utility
US 6,405,178 · App. 09/467,631
Electronic commerce enabled purchasing system
Inventors:
Daniel W. Manchala, Viswanath Yegnanarayanan
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Dec 20, 1999
Inventors
Daniel W. Manchala
Viswanath Yegnanarayanan
Assignee (at issue)
Xerox 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.