Granted Patent
Utility
US 5,906,896 · App. 07/917,670
Rotary seal member coated with a chromium carbide-age hardenable nickel base alloy
Inventors:
John E. Jackson, Marianne O. Price
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Jul 21, 1992
Inventors
John E. Jackson
Marianne O. Price
Assignee (at issue)
Praxair S.T. Technology, 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.