Granted Patent
Utility
US 4,648,839 · App. 06/768,336
Carrier device for hand tools, for use in dental work
Inventors:
Ake Timerdahl, Jan Angseryd
Patented Case
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Granted: Mar 10, 1987
Filed: Aug 22, 1985
Inventors
Ake Timerdahl
Jan Angseryd
Assignee (at issue)
Landstingens Inkopscentral, Lic, Ekonomisk Forening
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.