Granted Patent
Utility
US 4,881,668 · App. 07/204,109
Closure with open lid retainer
Inventors:
Lawrence R. Kitterman, Robert D. Rohr
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Jun 8, 1988
Inventors
Lawrence R. Kitterman
Robert D. Rohr
Assignee (at issue)
Seaquist Closures, a division of Pittway 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.