Umbrella cushion
CA 2043441 A1 · Owner: Totes, Incorporated · Inventors: Okuda, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A tubular sleeve carried on an umbrella's centerpost between the umbrella's runner and crown acts as a cushion when the umbrella is opened. The sleeve is structured to include a cushioning section with ports cut out in the form of holes spiral, grooves, or slots. The sleeve preferably is a one piece molded plastic part that, if desired can be, formed integral with the crown or runner.
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 May 29, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 29, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2013.
- 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.