Granted Patent
Utility
US 4,768,950 · App. 06/741,666
Orthodontic elastomeric ligature manipulator
Inventors:
Maclay M. Armstrong, Steven A. Houser
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: Apr 12, 1985
Inventors
Maclay M. Armstrong
Steven A. Houser
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.