Granted Patent
Utility
US 4,626,209 · App. 06/600,603
Orthodontic bracket with metallic coated bonding base
Inventors:
Min-Hua Tsai, John E. Sargeant
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Apr 17, 1984
Inventors
Min-Hua Tsai
John E. Sargeant
Assignee (at issue)
Unitek
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.