Drive assembly for retractable top of a mobile housing
CA 2191058 C · Owner: Steury, Edwin J. · Inventors: Steury, Edwin J.; Steury, Virgil H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile housing is provided with a plurality of telescopic standards mounted on a base for movably supporting the top of the mobile housing between a lowered position and a raised position relative to the base. A first pair and a second pair of slidable pistons are mounted in the base for simultaneous movement between a first position and a second position the movement of, each of the pair of pistons being substantially parallel and in opposite directions to one another. A first pair and a second pair of tubes, are provided with longitudinally extending slots and a flexible conduit extends from each of the tubes to one of the standards. Each of the tubes of the first pair and each of the …
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 November 22, 1996 and granted October 31, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2018.
- 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.