Integrated fastening system
CA 2485451 C · Owner: Brooks, Lawrence Antony · Inventors: Brooks, Lawrence Antony; Sidwell, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fastener system comprising a plurality of ranges of size of threaded fastener (10), each fastener having a head (12 32) provided with a recess (14) to receive a tool (20) to rotatingly drive the fastener. In each range of sizes, the largest size of fastener has a recess (14) comprising a plurality of driving tiers (16a b, c, d) of , reducing size superimposed on one another. Between two adjacent size ranges, there is a common tier (16d; 16b') being the largest , tier (16b', 16b") of the recess (14' 14") smaller size , range, and the smallest tier (16d) of the recess (14) of the larger size range
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 9, 2003 and granted February 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2025.
- 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.