Granted Patent
Utility
US 4,259,474 · App. 06/078,708
Sulfur-containing polyoxyalkylenes
Inventors:
Paritosh M. Chakrabarti, Lindley S. Wood, David J. Tracy
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Sep 25, 1979
Inventors
Paritosh M. Chakrabarti
Lindley S. Wood
David J. Tracy
Assignee (at issue)
GAF Corporation
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.