Water actuated inflatable float device
CA 1237949 A · Owner: Trip-Saver Inc. · Inventors: Heitkamp, Lawrence F. Iii; Heitkamp, John J. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flotation device including an inflatable member a, compressed gas source including a container therefore with a port therein, means normally sealing the port a body member, having a bore extending therethrough means connecting the port, of the compressed gas container to the body member adjacent the bore and in registration therewith, a piston member positioned in the bore and movable therein between a first position engaging the means sealably closing the port in the compressed gas container and a second position spaced from the sealing means, the piston member having means thereon capable of rupturing the means sealably closing the port in the compressed gas container in the first …
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
- Granted June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2005.
- 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.