Granted Patent
Utility
US 6,026,989 · App. 09/164,143
Multichamber squeeze tube integrally molded in one piece and container assembly incorporating same
Inventor:
Thomas Michael Richmond
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Sep 30, 1998
Inventor
Thomas Michael Richmond
Assignee (at issue)
RXI Plastics, 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.