Granted Patent
Utility
US 6,699,545 · App. 10/128,784
Method for increasing solid state polymerization rate of polyester polymers
Inventor:
Anju Parthasarathy
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Apr 22, 2002
Inventor
Anju Parthasarathy
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND 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.