Non-tippable pop-up caution sign
CA 2300472 A1 · Owner: Glendenning, Ronald Stuart · Inventors: Young, Ronald Scot; Glendenning, Ronald Stuart
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A warning sign comprises two parts 10, 11 pivotably connected together at their upper ends and having ground contacting foot portions 13 at their lower ends. The two parts are pivotable between a first storage position in which the two parts are, arranged in side-by-side relationship and a second operative position in which the two, parts are at an angle to one another so that with the foot portion or , portions of one part spaced from the foot portion or portions of the other part the sign will , be self, supporting on the ground. Detent means 16 17 are provided for releasably , retaining the two parts in said second position. There is also disclosed a third pop-up part (see Figure 4) …
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 March 8, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 8, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2022.
- 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.