Granted Patent
Utility
US 4,496,046 · App. 06/619,648
Multiple chamber container with inner diaphragm and intermediate chamber
Inventors:
Albert Stone, Edwin Pyde, Peter Carveth
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Jun 15, 1984
Inventors
Albert Stone
Edwin Pyde
Peter Carveth
Assignee (at issue)
Baxter Travenol Laboratories, 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.