Granted Patent
Utility
US 6,803,395 · App. 10/001,741
Photoprotective and lightfastness-enhancing siloxanes
Inventors:
Thomas W. Smith, Kathleen M. McGrane
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Nov 15, 2001
Inventors
Thomas W. Smith
Kathleen M. McGrane
Assignee (at issue)
Xerox 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.