Granted Patent
Utility
US 4,251,252 · App. 05/918,589
Method for making vacuum insulated container
Inventor:
Albert A. Frazier
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Jun 23, 1978
Inventor
Albert A. Frazier
Assignee (at issue)
Aladdin Industries, L.L.C.
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.