Granted Patent
Utility
US 4,797,459 · App. 07/031,498
Dispersing agents for producing vinyl polymer polyols utilizing an alkoxylated alkyl or alkylphenyl polyoxyalkylene isopropylamine
Inventor:
Michael Cuscurida
Patented Case
View Patent ↗
Granted: Jan 10, 1989
Filed: Mar 30, 1987
Inventor
Michael Cuscurida
Assignee (at issue)
Arco Chemical Company
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.