Portable toy for playing different, interchangeable electro-mechanical toy-units
CA 2008604 C · Owner: Chung, Henry Hung Lai · Inventors: Chung, Henry Hung Lai
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a portable toy capable of playing at different times, different, interchangable electro-, mechanical toy-units. The invention provides a toy which permits a user to have a single power-unit to supply electrical and mechanical energy to a toy-unit which is received by the power-unit. However, the toy-units are interchangable and so the user can play at different times, with several different toy units with each different toy-, unit providing a different toy with which the user can play. In a preferred embodiment of the invention the, power unit is worn on a wrist of the user.
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 January 25, 1990 and granted July 26, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 25, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2012.
- 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.