Caulk bead removal tool
CA 2219468 C · Owner: Dewberry, Andrew · Inventors: Dewberry, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hand held tool for the removal of a cured bead of caulk sealant or other previously fluent material from a joint between substantially perpendicular surfaces. The tool comprises an elongate handle with two working heads. The primary working head at one end of the longitudinal axis of the handle features a chisel-like point angled down from the upper face of the handle and extending between two symmetrical flanking planes which are acutely angled to each other and also spread from the body of the handle. The planes are bevelled to form sharp edges for scraping surfaces during an operation to remove a bead whilst the chisel-like point chisels the body of the bead from the joint. Axially …
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 December 22, 1997 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2019.
- 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.