Granted Patent
Utility
US 4,306,849 · App. 05/953,620
Apparatus for providing bottom blanks for containers in a manufacturing process
Inventors:
Allan K. Cress, Charles E. Busse
Patented Case
View Patent ↗
Granted: Dec 22, 1981
Filed: Oct 23, 1978
Inventors
Allan K. Cress
Charles E. Busse
Assignee (at issue)
Maryland Cup 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.