Granted Patent
Utility
US 4,849,321 · App. 07/013,605
UV curable compositions for making improved solder mask coatings
Inventors:
Paul L. K. Hung, Kenneth Tseng
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Feb 12, 1987
Inventors
Paul L. K. Hung
Kenneth Tseng
Assignee (at issue)
M&T Chemicals, 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.