Convertible multi-use writing instrument and use thereof
CA 2553972 C · Owner: Adelman, Gregory M. · Inventors: Adelman, Gregory M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In one embodiment, a convertible multi-use writing instrument includes a quick-use arrangement including a quick-use writing instrument and a quick-use cap , for encapsulating the quick-use writing instrument. The quick-use arrangement is , convertible to a full-size arrangement. The convertible multi-use writing instrument , also includes the full-size arrangement. The full-size arrangement includes a full-size , writing instrument that is convertible to the quick-use arrangement.
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 January 10, 2005 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 10, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.