Blade ring attachment system
CA 2212674 A1 · Owner: Hunter Fan Company · Inventors: Pearce, Richard A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ceiling fan blade attachment system for attaching a ceiling fan blade ring to a rotatable electric drive motor mounting surface. The blade ring and motor mounting surface include cooperating elements that enable the blade ring to be suspended adjacent to the motor mounting surface prior to fixed attachment of the blade ring to the motor mounting surface. The motor mounting surface included a plurality of downwardly extending suspension posts. The blade ring includes a plate or bracket including keyhole shaped openings to receive the suspension posts and the enable rotation of the mounting ring so as to lock or suspend the blade the blade ring can be fixedly attached to the mounting …
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 8, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 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.