A device for relative movement of two elements
CA 2248590 A1 · Owner: Asea Brown Boveri Ab · Inventors: Brogardh, Torgny
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for relative movement of two elements (1 2) comprises at least two , first links (8 9), which are connected relative to a first (1) of the elements via hinges (10, 11) and which are pivotable in substantially parallel planes relative to the first element (1) under influence of at least one first power-exerting member (12). At least two second links (14 15), which are , connected relative to a second (2) of the elements via hinges (16 17), are , pivotable in substantially parallel planes relative to the second element under influence of at least one second power-exerting member (18). The two first links (8, 9) form a first four-hinges system (FS1). The two second links (14, …
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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 14, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2019.
- 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.