Granted Patent
Utility
US 4,411,467 · App. 06/231,034
Foil covering layer for sun visor
Inventors:
Kurt Cziptschirsch, Klaus Kaiser, Gerhard Zwirner
Patented Case
View Patent ↗
Granted: Oct 25, 1983
Filed: Feb 4, 1981
Inventors
Kurt Cziptschirsch
Klaus Kaiser
Gerhard Zwirner
Assignee (at issue)
Gebr. Happich GmbH
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.