Screwing element
CA 2283801 A1 · Owner: Kouwenhoven, Peter · Inventors: Kouwenhoven, Peter; Koppel, Norbert; Scheiwiller, Felix
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a screwing element (1) for receiving the fastener head (5) of a fastener device (6), which screwing element (1) is provided with jaws (3, 4) for grasping the fastener head. The jaws (3 4) can be inserted into , and extracted from the mounting (2) in the axial direction and in the , extracted position, can be pivoted apart from each other into an open position. At their free ends, the jaws have recesses (15 16) with adjoining , gripper-like parts (17 18) which project towards the centre axis and engage behind the fastener head (5) in a form- and/or force-locking manner.
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 February 16, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 2020.
- 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.