Granted Patent
Utility
US 4,549,929 · App. 06/638,073
Tin compounds for brightness improvement of jack pine ultra
Inventors:
Ching-Hua Tay, Raymond S. Fairchild
Patented Case
View Patent ↗
Granted: Oct 29, 1985
Filed: Aug 6, 1984
Inventors
Ching-Hua Tay
Raymond S. Fairchild
Assignee (at issue)
Abitibi-Price, 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.