Recoverable article
CA 2284267 A1 · Owner: Borgstrom, Alan D. · Inventors: Borgstrom, Alan D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A recoverable article comprises an inner resilient radially elastomeric tubular member (2) that is held in its expanded configuration by an outer relatively rigid shell (6). The interface between the member (2) and the shell (6) comprises a plurality of circumferentially-spaced parallel strips (4) coated onto the member (2). The strips (4) prevent the shell (6) from bonding to the member (2) in those regions. The shell (6) is castellated with its valleys (12) adjacent the edges of the strips (4). The lands (8) of the castellated shell (6) overlying the strips (4) can be peeled back to permit the resilient member (2) to recover towards its original configuration for , example around …
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 March 17, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2020.
- 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.