Power supply device
CA 2004923 A1 · Owner: Lopic, Franz · Inventors: Lopic, Franz; Lindermeir, Wolfgang; Katzer, Johann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electric supply device (1) for the mains-independent operation of electrical appliances (2) has a holder (11) fixed to the electrical appliance (2) for the easily detachably locked and substantially completely exposed mounting support of a storage unit (10). For electrically conductive contact connection, approximately in the plane of a countersunk bearing surface (13), the storage unit (10) has flat and positionally rigid contacting contacts (38), with which are associated corresponding countercontacting contacts (39) in the vicinity of the associated counterbearing surface (13) of holder (11). The contacting contacts (38 39) are close, to a hinge axis formed by a projecting hinged cam …
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 December 8, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 8, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2011.
- 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.