Granted Patent
Utility
US 5,228,852 · App. 07/861,088
Handpiece assembly for a dental laser
Inventors:
Daniel S. Goldsmith, William S. Parker, Michael P. Howell, Terry D. Myers, William D. Myers
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Mar 31, 1992
Inventors
Daniel S. Goldsmith
William S. Parker
Michael P. Howell
Terry D. Myers
William D. Myers
Assignee (at issue)
American Dental Laser, 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.