Dental pin and holder
CA 1257991 A · Owner: Filhol, Stuart J. · Inventors: Filhol, Stuart J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Dental Pin and Holder A dental pin having a threaded portion for insertion into a tooth is formed with a shank which has portions inclined relative to the threaded portion and to each other. The threaded portion and shank are of integral construction and the shank is of zig-zag shape. A holder for the pin can take several forms each with a bore for receiving the shank releasably but in driving engagement with the holder. The holder may take a form suitable for use with a dental handpiece or for manual insertion of the pin. The invention also provides a holder with a ratchet mechanism for manual insertion of the pin.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 1, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 1, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.