Water-actuated novelty
CA 2028260 A1 · Owner: Heatter, Merrill · Inventors: Snaper, Alvin Allyn; Heatter, Merrill
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novelty format in which a compressed dry stored material is expanded by addition of water. It is supported by a telescopic array of rods and a sleeve to limit bending of the wetted material. It can be made to simulate various objects such as a stalk or stem, and may carry greetings which rise with the expansion of the material when the material is wetted with water.
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 22, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 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.