Granted Patent
Utility
US 5,691,006 · App. 08/568,092
Solder resist coating from photosensitive composition containing water as solvent or dispersant
Inventors:
Roger Salvin, Adrian Schulthess
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Dec 6, 1995
Inventors
Roger Salvin
Adrian Schulthess
Assignee (at issue)
Ciba Specialty Chemicals 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.