Granted Patent
Utility
US 4,664,279 · App. 06/786,965
Closure cap of plastic material
Inventors:
Albert Obrist, Franz T. Bartl, Klaus Geisinger
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Oct 3, 1985
Inventors
Albert Obrist
Franz T. Bartl
Klaus Geisinger
Assignee (at issue)
Crown Obrist 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.