Granted Patent
Utility
US 4,557,839 · App. 06/685,196
Synergistic lubricant additives of antimony thioantimonate and molybdenum disulfide or graphite
Inventors:
Paul Tubbs, James P. King
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Dec 21, 1984
Inventors
Paul Tubbs
James P. King
Assignee (at issue)
Pennwalt 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.