Granted Patent
Utility
US 6,264,447 · App. 09/685,438
Air-cooled shaft seal
Inventor:
Glenn Woodcock
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Oct 11, 2000
Inventor
Glenn Woodcock
Assignee (at issue)
Dynisco, 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.