Granted Patent
Utility
US 4,964,259 · App. 07/388,820
Form-fill-seal deflation method and apparatus
Inventors:
Jon A. Ylvisaker, Louis R. Boston
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Aug 2, 1989
Inventors
Jon A. Ylvisaker
Louis R. Boston
Assignee (at issue)
Borden 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.