Granted Patent
Utility
US 5,558,706 · App. 08/754,448
Corrosion inhibiting pigment composition
Inventor:
John Sinko
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Dec 15, 1995
Inventor
John Sinko
Assignee (at issue)
WAYNE PIGMENT 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.