Granted Patent
Utility
US 4,559,765 · App. 06/395,469
Apparatus for manufacturing foam plastic containers by use of a tubular forming mandrel
Inventors:
Allan K. Cress, Charles E. Busse
Patented Case
View Patent ↗
Granted: Dec 24, 1985
Filed: Jul 6, 1982
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.