Underwater servicing device
CA 2107917 C · Owner: Eathorne, Russell James · Inventors: Eathorne, Russell James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An underwater servicing device comprising a substantially hollow housing (30) having an open face (32) whereby the , configuration of the open face (32) substantially conforms to the surface of an article to which the housing (30) is to be mounted. Sealing means (34) is provided about the peripheral edge of the open face (32), as is pumping means (42) in fluid communication with the interior of the housing (30) that is capable of evacuating fluid from therewithin and removing such evacuated fluid externally of the device. Moving means for moving the device from one location on the article to another is also provided, said moving means being capable of raising the device away from the …
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 April 10, 1992 and granted June 19, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2014.
- 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.