Granted Patent
Utility
US 4,601,767 · App. 06/696,057
Vinsol coating in sweetie barrel
Inventor:
Richard H. Youngstrand
Patented Case
View Patent ↗
Granted: Jul 22, 1986
Filed: Jan 29, 1985
Inventor
Richard H. Youngstrand
Assignee (at issue)
Olin 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.