Tooth-cleaning device and method
CA 1338515 C · Owner: Klinkhammer, Ronald William · Inventors: Klinkhammer, Ronald William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The device and method employ a pair of spaced jaws which have a tooth cleaning implement connected therewith, in the gap therebetween. In use, the jaws are straddled about a row of teeth, transverse thereof and translated along the row opposite the inside and outside faces of the teeth. Various features enable the user to locate and "steer" the device even when, the jaws and implement are out-of-sight to him. Other features enable the user to count on the device itself to provide the "dynamics" with which we commonly use a conventional "tooth brush" when we manipulate it in our mouths from a point thereoutside. Still others enable the user to program or predetermine the "grip" of the …
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 13, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2013.
- 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.