Granted Patent
Utility
US 5,224,715 · App. 07/819,302
Supported-lip low interference metal stab seal
Inventors:
Stephen Downes, David Gill
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Jan 9, 1992
Inventors
Stephen Downes
David Gill
Assignee (at issue)
Cooper Industries Holdings
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.