Granted Patent
Utility
US 5,330,074 · App. 08/050,254
Apparatus for dispensing flowable materials from a pouch
Inventors:
Ralph C. Wirsig, David C. King
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: May 12, 1993
Inventors
Ralph C. Wirsig
David C. King
Assignee (at issue)
DuPont Canada 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.