Granted Patent
Utility
US 4,257,526 · App. 05/935,738
Bottle closure and finish
Inventors:
Ferdinand Weits, Ronald A. Pearce, Norman G. Pennington
Patented Case
View Patent ↗
Granted: Mar 24, 1981
Filed: Aug 21, 1978
Inventors
Ferdinand Weits
Ronald A. Pearce
Norman G. Pennington
Assignee (at issue)
Coors Container Company
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.