Parachute balloon
CA 2236776 A1 · Owner: Hayashi, Masahiko · Inventors: Hayashi, Masahiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a parachute balloon. The parachute balloon of the, invention is comprised an envelope which is able to be collapsed and put away at the time of nonuse and a parachute attached to the envelope. Also the parachute balloon is able to fall safely by the effect of the parachute in any case including the usual falling or emergency during a fall, such as be out of fuel.
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 6, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 2020.
- 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.