Retrievable ice anchor and method of use
CA 2359094 A1 · Owner: Pinder, Edward · Inventors: Pinder, Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a retrievable ice anchor for securing a portable shelter such as those used for ice fishing to the ice surface of a , body of, water. The anchor is suspended vertically from an offset connector and lowered through a hole in the ice such as that used for fishing. Once lowered through the, hole, the user pulls up on a connector. In a single connector embodiment the, connector is attached offset from the bar's center of gravity. When pulled up one, projection on the bar engages the underside of the ice and rotates to engage and, anchor the bar. In a two connector embodiment pulling on a second connector, attached to the center of gravity of the anchor causes it to …
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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 October 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 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.