Vapour tight environmental protection oil battery
CA 2025925 A1 · Owner: Enserv Corporation · Inventors: Rajewski, Robert K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vapour tight oil battery assembly includes a single, large size, combination separation and production tank for connection to a well-head. The separation of gas from oil and holding of the production oil all occurs within the same chamber. In one form, the combination separation and production tank is mounted on skids and in, another form, is adapted to be installed underground. The separation and production tanks are preferably adapted from surplus pressurized tank cars. Treaters may be used in association with the combination separation and production tank.
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
- Filed September 21, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2012.
- 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.