Doorstop
CA 2125909 A1 · Owner: Billew, Dennis · Inventors: Billew, Dennis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
IMPROVED DOORSTOP", Abstract of the Disclosure Improved doorstop composed of an elongated unitary strip of resilient material. The strip is bent to form a substantially closed geometric shape that includes at least one extended substantially flat side for attachment to a wall or baseboard. The second end of the strip lies over the extended flat side and engages same when the apparatus is flexed from contact with a door. The preferred form is trapezoidal in shape and has a resilient deformable pad disposed on the short parallel side. It is also preferred to include a stop at the distal end of the extended flat side to engage the other end when the apparatus is fully flexed.
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 June 15, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 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.