Granted Patent
Utility
US 5,759,705 · App. 08/833,867
Stain inhibiting pigment composition
Inventor:
John Sinko
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Apr 10, 1997
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.