Granted Patent
Utility
US 5,021,209 · App. 07/429,779
Process for forming an extrusion-blow molded ultrathin container using a heat generating pinch off arrangement
Inventor:
Albert B. Dickinson
Patented Case
View Patent ↗
Granted: Jun 4, 1991
Filed: Oct 31, 1989
Inventor
Albert B. Dickinson
Assignee (at issue)
Edward S. Robbins, III
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.