Granted Patent
Utility
US 6,710,158 · App. 10/177,932
Methods for making polyester bottle resins having reduced frictional properties
Inventors:
Walter Lee Edwards, Robert Joseph Schiavone, Carl Steven Nichols, Tony Clifford Moore
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Jun 21, 2002
Inventors
Walter Lee Edwards
Robert Joseph Schiavone
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.