Granted Patent
Utility
US 4,289,233 · App. 06/085,128
Packaging of mutually reactive substances
Inventor:
Francis G. Firth
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Oct 15, 1979
Inventor
Francis G. Firth
Assignee (at issue)
Applied Plastics Co., 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.