Granted Patent
Utility
US 5,332,121 · App. 07/994,681
Squeezable multi-layer dispensing container with one-way valve
Inventors:
Steven L. Schmidt, Wayne N. Collette, Suppayan M. Krishnakumar
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Dec 22, 1992
Inventors
Steven L. Schmidt
Wayne N. Collette
Suppayan M. Krishnakumar
Assignee (at issue)
Continental PET Technologies, 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.