Granted Patent
Utility
US 4,531,649 · App. 06/602,686
Molded plastic cap with sealing liner
Inventor:
Robert W. Shull
Patented Case
View Patent ↗
Granted: Jul 30, 1985
Filed: Apr 23, 1984
Inventor
Robert W. Shull
Assignee (at issue)
ANCHOR HOCKING, LLC
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.