Bicycle frame tube connecting device
CA 2075873 A1 · Owner: Wu, Yung-Yuan · Inventors: Wu, Yung-Yuan; Wu, Yung-Yuan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bicycle frame tube connecting device includes a frame tube connector having at least one tubular lug which, has each a plurality of circular recesses spaced from one another around the respective inside surface and at least, one frame tube respectively inserted in the at least one tubular lug and treated through the process of squeezing to fore a plurality of circular projections respectively engaging the circular recesses on the respective tubular lug. A reinforcing tube each may be respectively inserted in the at least one frame tube, and then treated through the process of squeezing to form a plurality of circular projections around the outside surface respectively fit the circular …
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 August 12, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 12, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 2014.
- 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.