Hand-held device for combatting periodontitis
CA 2029295 A1 · Owner: Colgate-Palmolive · Inventors: Piechota, Stanley E. Jr.; Barth, Jordan B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
IR #4277, HAND-HELD DEVICE FOR, COMBATTING PERIODONTITIS ABSTRACT OF THE DISCLOSURE, A device for combatting periodontitis comprising a hand-held device including hand operated pump means for forcing a viscous gel medicament into gingival openings and like treatable locations in the oral cavity. The device is provided with angulated passageways to enhance visibility of the oral cavity and a handle for holding the device in the proper location while being manipulated.
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 November 5, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 5, 2012.
- 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.