Dock
CA 1098725 A · Owner: Kay, Charles · Inventors: Kay, Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lightweight dock structure the deck of which is, supported on deck-straddling columns and which comprises an, upper compression layer and a vertically spaced lower tension layer, each layer formed of a plurality of transverse elements, said elements in each layer and said layers being interconnected by horizontally elongated flanged stringer plates extending between said layers normal to said elements with the flanges of the stringer plates embedded in said elements in both layers. -1-
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
- Granted April 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 1998.
- 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.