Granted Patent
Utility
US 5,620,542 · App. 08/354,988
Apparatus and method for sealing valved bags transported by a conveyor
Inventors:
Michael R. Avila, Robert G. Kelley, Don G. Giles, Jerry L. Aldridge
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Dec 13, 1994
Inventors
Michael R. Avila
Robert G. Kelley
Don G. Giles
Jerry L. Aldridge
Assignee (at issue)
Stone 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.