Granted Patent
Utility
US 6,279,897 · App. 09/385,970
Sheet separator dam
Inventor:
Douglas Richards
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Aug 30, 1999
Inventor
Douglas Richards
Assignee (at issue)
Lexmark 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.