Granted Patent
Utility
US 5,376,735 · App. 08/104,741
Preparation of branched polyethylene terephthalate
Inventor:
Bobby J. Sublett
Patented Case
View Patent ↗
Granted: Dec 27, 1994
Filed: Jul 12, 1993
Inventor
Bobby J. Sublett
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.