Mobile communication unit with retractable antenna
CA 2320316 A1 · Owner: Choi, Young Suk · Inventors: Choi, Young Suk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile communication unit with an automatically retractable antenna (4) is disclosed. The unit includes a casing (2) an antenna (4) extended and , retracted from the upper surface of the casing (2) a support member (5) which , is integral with the lower portion of the antenna (4) and having a support member groove (5a) for receiving upper and lower stoppers (11 12) therein and , an engaging shoulder a pushing member (7) which is moved up and down by a button (20) in the casing (2) and rotating the stoppers by a pair of upper and lower operation pins (13, 14) disposed at the upper and lower portions upper , and lower pushing plates (9, 10) which are moved up and down by the pushing …
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 February 11, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 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.