Portable radiotelephone with sliding cover and automatic antenna extension
CA 2263529 C · Owner: Griffith, Gregory Clyde · Inventors: Griffith, Gregory Clyde; Link, Charles Martin Ii; Norman, Daniel P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to one aspect, a portable radiotelephone comprising a housing a , cover slidably engaged with the housing and selectively reciprocable relative to the housing between a first position wherein the portable radiotelephone , is in an on-hook condition and alternatively, a second position, wherein the portable radiotelephone is an an off-hook condition. According to another aspect, the portable radiotelephone comprises a housing a cover slidably , engaged with the housing and selectively reciprocable relative to the housing between a first position and, alternatively a second position, wherein at , least a portion of the cover extends outwardly beyond the housing and an , antenna …
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 August 11, 1997 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2019.
- 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.