Granted Patent
Utility
US 4,668,290 · App. 06/765,298
Dispersion strengthened cobalt-chromium-molybdenum alloy produced by gas atomization
Inventors:
Kathy Wang, Larry J. Gustavson, John H. Dumbleton
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Aug 13, 1985
Inventors
Kathy Wang
Larry J. Gustavson
John H. Dumbleton
Assignee (at issue)
Pfizer Hospital Products Group, 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.