Granted Patent
Utility
US 6,452,689 · App. 09/079,898
Data network based copier
Inventor:
Thiru Srinivasan
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: May 15, 1998
Inventor
Thiru Srinivasan
Assignee (at issue)
Qwest Communications International 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.