Microorganisms for degrading toxic waste materials
CA 1298798 C · Owner: Johnston, Michael G. · Inventors: Sojka, Stanley A.; Johnston, Michael G.; Kulpa, Charles F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case 4990/4991 WGG/smk/del 06/09/86, MICROORGANISMS FOR DEGRADING TOXIC WASTE MATERIALS, ABSTRACT, Microorganisms are disclosed for degrading toxic waste materials into more environmentally acceptable materials. Processes for utilizing the microorganisms in a sequencing batch reactor, and for treating industrial and municipal wastes such as, chemical waste landfill leachate and chemical process wastewater are also disclosed.
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 April 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 14, 2009.
- 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.