Surface replica fuel cell having a fiber-reinforced membrane
CA 2232309 C · Owner: Hockaday, Robert G. · Inventors: Hockaday, Robert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compact, surface replica fuel cell has a fiber reinforced porous central , membrane (3) and two porous outer membranes (23 31). Thin film catalyst and , metal electrode materials are deposited on both sides of the central membrane using a variety of techniques, such as ion or light bombardment etching, and , vacuum deposition. For compound fuels two catalysts are deposited. The first catalyst (13) forms the interior surface replica electrode (9). The second catalyst is positioned on the interior of pores (65) to scavenge hydrogen before it is diffused out of the electrode and the electrolyte (21). A hydrophobic film (19) is deposited over the electrode films to control electrolyte …
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 September 12, 1996 and granted December 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 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.