Granted Patent
Utility
US 4,844,272 · App. 07/276,655
Closure system with extendable tamper band bonded to container
Inventor:
Herbert V. Dutt
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Nov 28, 1988
Inventor
Herbert V. Dutt
Assignee (at issue)
Continental Plastic Corp.
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.