Selectively controlled keyboard support
CA 2071553 C · Owner: Cotterill, Michael John · Inventors: Cotterill, Michael John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A keyboard support apparatus has a mounting bracket (11), a keyboard support bracket (15) pivotally connected via parallel bars (20, 25) permitting change in altitude of bracket (15). The mechanism may be locked against change in altitude by means of a formation 58 associated with a bar (20) which is interengageable with a formation (54) associated with bracket (15) by means of a laterally operable lever 40 resiliently biased by a spring plate 52 towards engagement. In a preferred embodiment (figures 13 to 15) support bracket (15) may be tilted about a pivot (22) and the mechanism permits one handed selective operation of altitude adjustment or tilt adjustment.
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 17, 1990 and granted June 6, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 17, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2012.
- 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.