Granted Patent
Utility
US 5,260,162 · App. 07/628,549
Photosensitizer compositions containing diazo fluorinated esters of hexafluoro-bis-phenols or bis-hexafluoroethers
Inventors:
Dinesh N. Khanna, Robert E. Potvin
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Dec 17, 1990
Inventors
Dinesh N. Khanna
Robert E. Potvin
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.