Granted Patent
Utility
US 4,534,733 · App. 06/554,359
Device for dental massage to prevent tooth decay
Inventors:
Michel Seigneurin, Roger Blanc
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Nov 22, 1983
Inventors
Michel Seigneurin
Roger Blanc
Assignee (at issue)
Micro-Mega
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.