Granted Patent
Utility
US 4,306,401 · App. 06/092,704
Packaging apparatus
Inventors:
Roger H. Stohlquist, Leo Strombeck
Patented Case
View Patent ↗
Granted: Dec 22, 1981
Filed: Nov 9, 1979
Inventors
Roger H. Stohlquist
Leo Strombeck
Assignee (at issue)
Anderson Bros. Mfg. Co.
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.