Pointing device for a computer screen
CA 2415765 C · Owner: Stromberg, Rolf · Inventors: Stromberg, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention includes a device suitable for the displacement of a cursor or its equivalent on a monitor. The device comprises a loop (10) mounted in tension around and between two separate shaft devices (20 30) that , can be translated, at least one of which is arranged such that it can be displaced and rotated.
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 July 13, 2001 and granted December 31, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 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.