Cell construction for electrolysers and fuel cells
CA 2092679 A1 · Owner: Deutsche Aerospace Ag · Inventors: Brand, Rolf A.; Hildebrandt, Jurgen; Hofmann, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cell construction for electrolysers and fuel cells has a diaphragm that is permeable to electrolyte metallic elec-, trodes that are permeable to the electrolyte on both sides of the diaphragm, an electrically conductive bipolar cell separator wall that defines the cell, an electrically conductive structure between the electrodes and the cell separator walls that acts as an elastic separator and current feed, and a frame construction that encloses the cell around its periphery. The diaphragm is made as a flat plate. The layer-like electrodes are immediately adjacent to the diaphragm or are connected integrally with it. The cell separator walls are of sheet metal, optionally with …
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 March 12, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2015.
- 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.