Granted Patent
Utility
US 6,376,642 · App. 09/415,165
Polyester polycondensation with lithium titanyl oxalate catalyst
Inventors:
Kevin Cannon, Sri R. Seshadri
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Oct 8, 1999
Inventors
Kevin Cannon
Sri R. Seshadri
Assignee (at issue)
ATOFINA Chemicals, 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.