Bow for icebreaker
CA 1066139 A · Owner: Dome Petroleum Limited · Inventors: Johansson, Bengt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel bow for an icebreaker is provided. In this bow the, frames and the water lines are not faired to the wallsided mid-body but are suddenly cut off by an upper hard chine. In this fashion the, ice breaking bow form has small ice resistance and produces a channel comparatively free of ice.
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.