Granted Patent
Utility
US 4,261,481 · App. 05/932,054
Fluid packaging kit for pressurized dispensing
Inventor:
Spencer J. Speer
Patented Case
View Patent ↗
Granted: Apr 14, 1981
Filed: Aug 8, 1978
Inventor
Spencer J. Speer
Assignee (at issue)
General Dynamics Corporation
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.