Granted Patent
Utility
US 6,599,596 · App. 09/738,150
Methods of post-polymerization injection in continuous polyethylene terephthalate production
Inventors:
Carl Steven Nichols, Tony Clifford Moore
Patented Case
View Patent ↗
Granted: Jul 29, 2003
Filed: Dec 15, 2000
Inventors
Carl Steven Nichols
Tony Clifford Moore
Assignee (at issue)
Wellman Inc.
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.