An improved opaque, one-size-fits-all computer keyboard cover which covers only the three or four alpha-numeric rows
CA 2271392 C · Owner: Brazier, Sandra B. · Inventors: Nichol, Claudia D.; Brazier, Sandra B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved opaque computer keyboard cover (10) which covers only the three- or four alpha-numeric rows of the keyboard (12). Function and format keys (12) are not covered which provides a one-sizefits-all design. This configuration eliminates the need to order from 3000 various keyboard cover sizes. This cower is for use in keyboarding instruction and prevents peeking to accelerate user memorization. This cover can also be imprinted with a language option layout or Dvorak keyboard layout thus fully conforming the keyboard layout to one of the 60 or so languages available in the computer operating system keyboard preference options.
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 May 7, 1999 and granted December 3, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2021.
- 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.