A protector for protecting a timber pole against sub-soil decay
CA 2465525 A1 · Owner: Behr, Michael Robert · Inventors: Baecker, Albin Alexander Wladyslaw; Behr, Michael Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a field liner for protecting a timber pole against subsoil decay. The field liner includes a sleeve that can be loosely located , on a pole for covering the region of the pole to be protected and a covering , sheet that is secured to and extends from the sleeve in a configuration in which, with the sleeve located on a pole the covering sheet can be tightly , drawn and held around the sleeve for holding the sleeve tightly against the pole. The sleeve includes at least a flexible liquid impermeable, non-, biodegradable synthetic plastics film material layer whereas the covering , sheet is formed of a flexible non-biodegradable, woven synthetic plastics sheet …
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 October 25, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 2024.
- 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.