Granted Patent
Utility
US 4,535,902 · App. 06/423,358
Intermediate article of manufacture for a plastic container
Inventor:
Richard E. Clark
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Sep 24, 1982
Inventor
Richard E. Clark
Assignee (at issue)
Continental Packaging 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.