Granted Patent
Utility
US 4,513,059 · App. 06/564,762
Release coating composition
Inventor:
Winifred C. Dabroski
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Dec 21, 1983
Inventor
Winifred C. Dabroski
Assignee (at issue)
Permacel
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.