Stake for landscape edging and concrete formwork
CA 2073603 C · Owner: Reimann, Lyall V. · Inventors: Reimann, Lyall V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stake (10,80) is provided which can be used for edging gardens and lawns or for the formation of forms for concrete foundations and slabs. The stake (10 80) is, moulded from a synthetic plastic material and comprises a leading end (12) which is tapered for penetrating the ground and a trailing end (14) which is provided with a beam-receiving formation (16) thereon for receiving a beam therein. The beam receiving formation comprises at least one pair of planar side members (18, 20) which are spaced from one another. A plurality of the stakes can be provided as a garden edging kit or a concrete formwork kit.
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 July 10, 1992 and granted April 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 2014.
- 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.