Granted Patent
Utility
US 5,209,347 · App. 07/624,875
Internal tear seal dual bag
Inventors:
Eugene Fabisiewicz, Jack Fagan, Steffen Lyons
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Dec 5, 1990
Inventors
Eugene Fabisiewicz
Jack Fagan
Steffen Lyons
Assignee (at issue)
Clintec Nutrition Company
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.