Damper adjustment device
CA 2405346 A1 · Owner: Jenfeldt, Maik · Inventors: Jones, M. Scott; Jenfeldt, Maik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A damper assembly for a piano includes a rail assembly with an adjustable mount for mounting the rail assembly (311) to the piano case (40) and a plurality of underlevers (307) coupled to the rail assembly. The rail assembly (311) is configured for vertical adjustment: in which the rail assembly can define a vertical slot or discrete adjustment; and in which the rail assembly defines openings arranged vertically. The adjustable mount includes mounting blocks (342, 342a) and the rail is mounted to the blocks for rotation relative to the block. The mounting blocks each define an adjustment slot (333b). A method of simultaneously adjusting a plurality of piano underlevers in a piano …
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 29, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2023.
- 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.