Granted Patent
Utility
US 4,022,922 · App. 05/615,227
Method and apparatus for aseptic bulk storage of apple sauce
Inventor:
Philip E. Nelson
Patented Case
View Patent ↗
Granted: May 10, 1977
Filed: Sep 22, 1975
Inventor
Philip E. Nelson
Assignee (at issue)
PURDUE RESEARCH FOUNDATION
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.