Granted Patent
Utility
US 5,209,795 · App. 07/743,472
Method of forming a seal removal tab on a collapsible tube
Inventors:
Richard F. DeRosa, Carl B. Schartner
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Aug 9, 1991
Inventors
Richard F. DeRosa
Carl B. Schartner
Assignee (at issue)
Teledyne Industries, Inc.
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.