Bubble display apparatus and method
CA 1112040 A · Owner: Tomson, Steven H. · Inventors: Tomson, Steven H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
41, Abstract of the Disclosure, This invention relates to an apparatus and method for preserving bubbles permitted prolonged observation of the bubble. The device comprises, a bubble on a support therefor and a housing around the support for isolating and protecting the bubble from the enviroment outside of the housing. Means are also provided for increasing the humidity and atmospheric pressure within the housing so as to provide an enviroment therein condusive to the preservation of the bubble. The housing includes a transparent dome member. The invention disclosed by this application relates to a device for producing, preserving and displaying a bubble which comprises a casing which is …
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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
- Granted November 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 1998.
- 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.