Granted Patent
Utility
US 5,928,596 · App. 08/951,595
Apparatus and process for distributing molten thermoplastic polymers from melt polymerization to molding machines
Inventors:
Andrew Ervin McLeod, Douglas M. Haseltine, Larry Cates Windes, Marc Alan Strand
Patented Case
View Patent ↗
Granted: Jul 27, 1999
Filed: Oct 16, 1997
Inventors
Andrew Ervin McLeod
Douglas M. Haseltine
Larry Cates Windes
Marc Alan Strand
Assignee (at issue)
Eastman 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.