Granted Patent
Utility
US 4,511,299 · App. 06/528,584
Pull-tab forming method
Inventor:
Edgar H. Zysset
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Sep 1, 1983
Inventor
Edgar H. Zysset
Assignee (at issue)
Automated Container Corporation
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.