Granted Patent
Utility
US 6,663,950 · App. 09/878,940
Optically active film composite
Inventors:
Steven A. Barth, Anthony Brian Port, Coby Lee Hubbard
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: Jun 13, 2001
Inventors
Steven A. Barth
Anthony Brian Port
Coby Lee Hubbard
Assignee (at issue)
CPFilms 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.