Granted Patent
Utility
US 4,364,978 · App. 06/281,221
Process for high-temperature galvanizing
Inventors:
Erwin Diehl, Wolfgang Muller, Artur Stroh
Patented Case
View Patent ↗
Granted: Dec 21, 1982
Filed: Jul 7, 1981
Inventors
Erwin Diehl
Wolfgang Muller
Artur Stroh
Assignee (at issue)
Th. Goldschmidt. 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.