Rotating christmas tree stand
CA 2188100 C · Owner: Hms Mfg. Co. · Inventors: Sofy, Hugh M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotating stand assembly (10) for a stemmed article such as a Christmas tree (24) or a merchandise display rack includes a base (12) a spindle (18), bearings (36, 38), interconnecting the base (12) and the spindle (18). An electric motor (46) drives the spindle (18) through a gear train. A clutch (58) automatically disconnects the motor (46) from the spindle (18) in response to a predetermined force applied to the spindle. The clutch (58) includes a compression spring (78) for establishing the predetermined force required to disconnect the motor (46) from the spindle (18). Snap-fit outlets (86) are located in a top cover (32) of the spindle (18). The outlets (86) are electrically connected …
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 17, 1996 and granted May 28, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2018.
- 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.