Granted Patent
Utility
US 3,988,147 · App. 05/566,310
Methods of decarburization of molten ESR slags and reduction of carbon pick up in corrosion resistant alloys
Inventors:
Wilfredo V. Venal, Joseph Klein
Patented Case
View Patent ↗
Granted: Oct 26, 1976
Filed: Apr 9, 1975
Inventors
Wilfredo V. Venal
Joseph Klein
Assignee (at issue)
Cabot Corporation
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.