Granted Patent
Utility
US 4,606,948 · App. 06/736,046
Process for the production of nickel-chromium/chromium carbide coatings on substrates
Inventors:
Karel Hajmrle, Vilnis Silins
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: May 20, 1985
Inventors
Karel Hajmrle
Vilnis Silins
Assignee (at issue)
Sherritt Gordon Mines Limited
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.