Granted Patent
Utility
US 5,284,434 · App. 08/042,213
Blow molding extrusion head
Inventors:
James L. Throne, Christopher I. Beal, Michael M. Balasko
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Apr 2, 1993
Inventors
James L. Throne
Christopher I. Beal
Michael M. Balasko
Assignee (at issue)
The Geon 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.