Granted Patent
Utility
US 5,288,315 · App. 07/808,388
Surface coatings
Inventors:
Adalbert Braig, Emry Phillips
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Dec 16, 1991
Inventors
Adalbert Braig
Emry Phillips
Assignee (at issue)
Ciba-Geigy
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.