Structure for fastening facing structural units
CA 2118264 C · Owner: Branham, William K. Ii · Inventors: Branham, William K. Ii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A structural assembly for fastening together and disengaging a slotted supporting unit and a supported unit having adjustable gripping means mounted thereon cooperable with the slotted supporting unit to apply compressive forces to the supporting unit and resulting tensile forces to the supported unit in order to maintain the fastened together units in facing planer relationship.
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 17, 1994 and granted November 4, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2016.
- 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.