Semi-trailer locking apparatus
CA 2358810 A1 · Owner: Kelly, Steven Michael · Inventors: Kelly, Steven Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention involves a locking apparatus for semi-trailers and/or freight delivery units. A pin plate is attached to a standard trailer swing door roll-up type door or, another type of door. A housing is placed in the floor of the semi-trailer. A pin located within the housing is slidable within the housing from an unlocked position to a locked position, whereby the pin is raised to engage a pin plate secured to the semi-trailer door. A cam lock or another lock is used to keep the pin raised in the locked position.
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 October 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2023.
- 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.