Granted Patent
Utility
US 6,084,702 · App. 09/173,414
Thermochromic devices
Inventors:
Harlan J. Byker, Paul H. Ogburn, Jr.
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Oct 15, 1998
Inventors
Harlan J. Byker
Paul H. Ogburn, Jr.
Assignee (at issue)
Pleotint, L.L.C.
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.