Electrical plug
CA 2267443 A1 · Owner: Tindall, Glenn Andrew · Inventors: Tindall, Glenn Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrical plug (21) includes six equally angularly spaced axially extending tubular insulators (22) which have a central internal annular ridge (23) against which a thimble (13) and a socket (14) are collectively secured by the operation of bolt (15). A phase barrier (16) is a structural member being engaged at opposed ends (31, 32) by respective plates (27 29). The , plates are forced toward each other and into clamping engagement with insulators (22) by the action of bolts (33) which are threadedly engaged within complimentary bores in barrier (16).
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 September 30, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2019.
- 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.