Coin telephone box with anti-stuffing coin return chute
CA 2042900 A1 · Owner: Dearkland, James R. · Inventors: Dearkland, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus is provided in a coin operated telephone box for inhibiting the stuffing of the coin return chute of the box with foreign materials. Coin operated telephone boxes are provided internally with a coin return chute coin retrieval, cavity below the coin discharge end of the coin return chute and a coin return door in the front wall of the box. The return door is pivoted at its upper edge portion for swing movement inwardly toward the coin discharge end of the return chute and provides finger access to the coin retrieval cavity for the removal of coins from the box. To inhibit stuffing of the coin return chute there is provided a first gate plate affixed to and carried by the return …
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 17, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2013.
- 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.