Method of disposing of asbestos waste material
CA 1305865 C · Owner: Gpac, Inc. · Inventors: Natale, Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An abandoned or inactive portion of an asbestos open pit or underground shaft mine is used to permanently bury asbestos waste material produced from asbestos mining asbestos, processing and building demolition or renovation. The asbestos waste material is deposited in the mine preferrably, in sealed, containers and covered with tailings or non-asbestos material such as soil or the like. As the asbestos waste material is deposited in the mine, it is covered with a layer of tailings or non-asbestos material within any twenty-four hour period. This procedure is repeated until the mine if filled and ultimately covered with a layer of non-asbestos material. A layer of vegetation is then planted …
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 August 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 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.