Device for scattering a multitude of objects and method of making same
CA 2128455 C · Owner: Cheng, Peter S. C. · Inventors: Cheng, Peter S. C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for scattering confetti includes an inverted pocket positioned within the interior of an inflated envelope. Confetti is contained within the pocket, and a break-away closure maintains the confetti within the pocket. Upon compressing the envelope, the pocket is reversed in position the closure, ruptured, and the confetti is suddenly expelled in an explosive manner with a concomitant popping sound.
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 July 20, 1994 and granted January 20, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2016.
- 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.