Floating dock capable of varying width
CA 2108437 A1 · Owner: Miura, Nobutaka · Inventors: Miura, Nobutaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Different from the conventional slide contact. the float member carrier frames to which the float members are integrally attached are capable of moving along the outer surface of the front and rear frame members by a rolling contact afforded by the lateral roller so that the frictional resistance that the float member carrier frame receives is drastically reduced. Accordingly, upon actuation of the means for elevating the trestle body, the float members can be easily and smoothly moved along the outer surfaces of the front and rear frame members so that the trestle body along with the small boat can be easily and safely carried to the upper trestling Position and the lower trestling …
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 October 14, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 14, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2015.
- 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.