A fastening of an assembly part onto a carrier part
CA 2263025 C · Owner: Szczukowski, Adi · Inventors: Kirchhoff, Peter; Spickenheier, Klaus; Szczukowski, Adi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fastening of an assembly part on a carrier part with - at least one fastening screw which comprises a screw head with engaging surfaces for a tool, a screw shank, at least one radial projection on the screw, shank at a distance from the screw head and a thread at least at the distance of, the radial projection from the screw head - with a sleeve with an inner diameter which corresponds at least to the outer diameter of the radial projection and of the thread which is a narrow , location, with an inner diameter smaller than the diameter of the radial projection but at, least as large as the outer diameter of the screw shank between the screw head and the radial projection, and which at …
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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 February 25, 1999 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2021.
- 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.