Granted Patent
Utility
US 4,607,091 · App. 06/774,433
Polymeric resins derived from 1-oxa-3-aza tetraline group-containing compounds and cycloaliphatic epoxides
Inventor:
Herbert Schreiber
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Sep 10, 1985
Inventor
Herbert Schreiber
Assignee (at issue)
Gurit-Essex AG
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.