Granted Patent
Utility
US 6,506,461 · App. 09/283,076
Methods for making polyurethanes as thin films
Inventor:
John D. Affinito
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Mar 31, 1999
Inventor
John D. Affinito
Assignee (at issue)
Battelle Memorial Institute
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.