Granted Patent
Utility
US 6,663,079 · App. 10/198,027
Resilient seat gate valve
Inventor:
Jerry Bottenfield
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: Jul 18, 2002
Inventor
Jerry Bottenfield
Assignee (at issue)
MCWANE, 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.