Expired Canadian patentCanada
Marine seismic system
CA 1215161 A · Owner: Shell Oil Company · Inventors: Seriff, Aaron J.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A method of marine seismic exploration of the strata beneath a body of water comprising the steps of generating a compressional wave in the body of water and sensing the converted shear waves reflected from the strata.
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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 December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 16, 1984
GrantedDecember 9, 1986
Term endedDecember 9, 2003
Patent numberCA 1215161 A
Classification (IPC)G01V1/38 +2 more
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.