Granted Patent
Utility
US 4,776,791 · App. 07/142,988
Shield for a pair of orthodontic pliers for use in removing dental brackets
Inventors:
Donald L. Hannula, Frank Silva
Patented Case
View Patent ↗
Granted: Oct 11, 1988
Filed: Jan 12, 1988
Inventors
Donald L. Hannula
Frank Silva
Assignee (at issue)
Johnson & Johnson Consumer Products, 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.