Switchgear assembly with removable cell door cover
CA 2292831 A1 · Owner: Yanniello, Robert · Inventors: Yanniello, Robert; Scott, Marlyce J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A removable access opening cover is magnetically held in place over an access opening in magnetically permeable cell doors of a switchgear assembly by magnetic strips secured to flanges extending along edges of the cover. A window in the cover allows observation of the interior of an unoccupied cell or monitoring of indicators on the front panel of electrical apparatus such as a circuit breaker mounted in the cell. The cover can be stowed by magnetically attaching it to a magnetically permeable surface such as the metal side wall of the switchgear cabinet.
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 December 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2021.
- 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.