Screed extender with berm-forming screed
CA 1286902 C · Owner: Carlson Paving Company · Inventors: Carlson, James O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A screed assembly has two screed sections hingedly connected together at meeting beveled ends. The hinge between the screed sections maintains a hinge axis at the soles thereof as one of the screed sections is swung upwardly to define a sloped face for a berm alongside a paving mat as a paving machine with the screed assembly progresses to form the berm and paving mat simultaneously.
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 July 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 30, 2008.
- 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.