Electrical locking plug
CA 2308068 A1 · Owner: Duhe, Jerry R. · Inventors: Duhe, Jerry R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A locking electrical plug (1) including a securement arm (18) residing in a securement arm slot (32) located in the flat of a power blade (16). The securement arm (18) is normally biased orthogonal to the flat of the power blade (16) by a spring (15) and instruction member (20). In the normal locked position, the securement arm (32) extends outward from the securement arm slot (32). A mechanical catch located on the securement arm or alternatively , friction, is used to resist the extraction of the locking electrical plug (1) from a conventional electrical outlet. User operation of a mechanical pushbutton releases the lock by pushing the securement arm against the spring , force, into …
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 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 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.