Granted Patent
Utility
US 5,334,019 · App. 07/804,886
Dental air abrasive system
Inventors:
Daniel S. Goldsmith, Michael P. Howell, William S. Parker
Patented Case
View Patent ↗
Granted: Aug 2, 1994
Filed: Dec 6, 1991
Inventors
Daniel S. Goldsmith
Michael P. Howell
William S. Parker
Assignee (at issue)
American Dental Technologies, 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.