Floating dry dock
CA 2206829 A1 · Owner: Echelbarger, Larry R. · Inventors: Echelbarger, Larry R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A floating dry dock for boats. The dry dock has two side pontoons and a front pontoon. Each pontoon has one or more plastic tubs filled with styrofoam batts and attached to the frame for flotation. The top of the pontoons are provided with 2 inch by 6 inch by 27 inch cedar wood decking. The two side pontoons are attached to each other using at least two metal cradles, that also support a boat lift. The outside posts of the front and rear cradles have wheels mounted thereon to allow the dock to be moved from one location to another, over dry land. By varying the length of the pontoons, (and number of cradles) and, the number of plastic floatation tubs the dock can be, built and/or adjusted …
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 3, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 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.