Granted Patent
Utility
US 4,413,079 · App. 06/292,709
Powder enamels free of blocking agents
Inventors:
Josef Disteldorf, Rainer Gras, Horst Schnurbusch
Patented Case
View Patent ↗
Granted: Nov 1, 1983
Filed: Aug 13, 1981
Inventors
Josef Disteldorf
Rainer Gras
Horst Schnurbusch
Assignee (at issue)
Chemische Werke Huels Aktiengesellschaft
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.