Granted Patent
Utility
US 4,714,770 · App. 07/000,537
Dye silane compositions
Inventors:
Li-Chien Hsu, Hal Heitzmann
Patented Case
View Patent ↗
Granted: Dec 22, 1987
Filed: Jan 5, 1987
Inventors
Li-Chien Hsu
Hal Heitzmann
Assignee (at issue)
Baxter Travenol Laboratories, 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.