Removal of oil from water
CA 1163570 A · Owner: Gurland, Robert · Inventors: Crotti, Alfred F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bags loosely containing feathers are distributed onto oil on water to enable the feathers to take up the oil. The bags have openings sufficiently large to permit the oil to enter and contact the feathers yet, sufficiently small to retain the feathers within the bags. The bags can be linked together, for example in a chain using ropes. Once the feathers have become saturated with oil the bags can be picked up from the water.
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 March 13, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 2001.
- 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.