Safety hook and latch plate therefor
CA 2257307 A1 · Owner: Norrby, Henry · Inventors: Norrby, Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety hook comprises a hook (1) having a cross piece (4) from which two side pieces (5, 5') extend in the direction forwards to a curved part (7 7'), as well as a latch plate (2) which is connectable to the side pieces of the hook so as to resiliently abut against the inside thereof. The latch plate (2) is thin and elastically deformable and has two recessions (9 9') opening , outwards for receiving of portions of the side pieces (5 5') of the hook in , order to connect the plate therewith.
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 11, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 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.