Corrosion collector for batteries
CA 2175779 C · Owner: Wells, Isreal · Inventors: Caroseli, Dan; Truehill, Diane; Wells, Isreal
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thin, flexible rectangular sheet of copper for attracting corrosion from ambient corrosive atmosphere is disclosed. One side of the copper sheet is covered by an adhesive that, in turn, is overlaid by a peel off protective strip to be removed when it is desired to affix the unit to a battery casing. In an alternative embodiment the shorter, edges of the rectangular sheet have cutout areas to incorporate the terminals, thus exposing more surface area of the device to the corrosive atmosphere.
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 3, 1996 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 3, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2018.
- 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.