Dental prophy cup
CA 2131333 A1 · Owner: Brahler Products, Inc. · Inventors: Brahler, George R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable dental prophy cup designed to be coupled with a dental prophy angle for simultaneously cleansing both the surface of teeth and the surrounding tissue and gingival crevice. The dental prophy cup includes a concentric sidewall including coupling means for coupling the prophy cup with the output member of a dental prophy cup, wherein the rotation of the prophy angle output member causes the prophy cup to rotate and, cleansing means attached to the outer surface of the sidewall for cleansing the tissue of the gingival crevice of a tooth when the prophy cup is rotated by the prophy angle output member.
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
- Filed September 1, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 2016.
- 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.