Trailer loader/unloader with pullout section
CA 2467934 C · Owner: Rapistan Systems Advertising Corp. · Inventors: Brouwer, Gerald A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An extendable conveying system for either loading product to or unloading product from a trailer includes an extendable section which defines a conveying surface. The system further includes a pullout section that defines a support surface. The pullout section has an extended position and a retracted position. When the pullout section is in its extended position its support surface at least partially extends from the conveying surface. The system further includes an energy- storing device connected with the pullout section and the extendable section. The energy-storing device stores energy as the pullout section is moved from either the extended ar retracted position to the other 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 May 20, 2004 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 20, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2026.
- 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.