Granted Patent
Utility
US 4,497,855 · App. 06/261,061
Collapse resistant polyester container for hot fill applications
Inventors:
Purushottam Agrawal, John MANDELL
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: May 6, 1981
Inventors
Purushottam Agrawal
John MANDELL
Assignee (at issue)
Monsanto Company
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.