Submersible marine dock system and method
CA 2033764 C · Owner: Meldrum, Charles R. · Inventors: Meldrum, Charles R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A submersible dock system with mooring pilings which folds down for storage underwater. The dock system includes a deck or mainspan normally above water a, submerged horizontal frame and, if necessary leveling means, and a plurality , of vertical support structures extending between the submerged frame and dock. The submerged, frame, vertical structures and mainspan of the deck are all preferably constructed of, rectangular tubing members which are pivotally joined in key places to enable the deck to be, pivoted from an upright position to a substantially supine position underwater. The dock, system also includes a plurality of telescoping members to hold the deck in an upright, …
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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 January 8, 1991 and granted December 25, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2013.
- 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.