Concrete planting bowl
CA 1066056 A · Owner: Dyckerhoff And Widmann Aktiengesellschaft · Inventors: Lieske, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pots for flowers plants, etc. made of monolithic concrete or similar settable material which are economical with respect to the amount of the concrete or similar material required and therefore relatively light in weight, have a center horizontal region which is hexagonal in outline and an internal cavity of circular cross-section extending inwardly from the top, which is preferably in the shape of an inverted frustocone and, have the upper and lower parts of the exterior rounded off towards the respective tops and bottoms thereof, the rounding off extending substantially to the central horizontal plane at the edges of the hexagon.
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
- Granted November 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 13, 1996.
- 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.