Closure for a coking chamber of a coking oven
CA 1082122 A · Owner: G. Wolff Jr. Kommanditgesellschaft · Inventors: Dix, Kurt; Hoffmann, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The opening for charging a coking chamber of a coking oven is closed by closure means and a lock chamber is arranged outside the closure means for preventing any emissions from the coking chamber seeping past the closure means to pass to the outer atmosphere.
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 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 1997.
- 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.