Granted Patent
Utility
US 4,191,581 · App. 05/813,782
Aqueous-alcoholic, foam-growth-controlling printing ink compositions
Inventor:
Artimus C. Hamilton
Patented Case
View Patent ↗
Granted: Mar 4, 1980
Filed: Jul 7, 1977
Inventor
Artimus C. Hamilton
Assignee (at issue)
CONGOLEUM 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.