Granted Patent
Utility
US 6,272,869 · App. 09/607,630
Multiple orifice expansion device
Inventor:
David H. Eber
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Jun 30, 2000
Inventor
David H. Eber
Assignee (at issue)
American Standard 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.