Granted Patent
Utility
US 4,358,334 · App. 06/255,601
Forming an integral closure for a thermoplastic container
Inventors:
Thomas A. Sutrina, R. Douglas Behr
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: Apr 20, 1981
Inventors
Thomas A. Sutrina
R. Douglas Behr
Assignee (at issue)
THE DOW CHEMICAL 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.