Granted Patent
Utility
US 6,525,136 · App. 09/920,926
Photochromic core and shell matrix
Inventors:
Daniel A. Foucher, Jaan Noolandi, James H. Sharp
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Aug 2, 2001
Inventors
Daniel A. Foucher
Jaan Noolandi
James H. Sharp
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.