Illuminating pointer
CA 2069606 A1 · Owner: Shirkhanzadeh, Morteza · Inventors: Shirkhanzadeh, Morteza
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pointers are normally used in classrooms or instructional settings to draw attention to material displayed on a screen. In this invention the pointer has a light source close to its tip, controlled by the operator, to improve the effectiveness of the pointer in drawing attention to a particular point or or area on a screen. The pointer may also have the means for generating intermittent light and sound to further enhance its function.
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 26, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2014.
- 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.