Granted Patent
Utility
US 4,947,523 · App. 07/403,464
Bag closure devices
Inventors:
Edward S. Robbins, III, Theodore J. Onocki
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Sep 5, 1989
Inventors
Edward S. Robbins, III
Theodore J. Onocki
Assignee (at issue)
Edward S. Robbins, III
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.