Expired Canadian patentCanada
Method of vaulting hazardous chemical waste materials
CA 1102567 A · Owner: Stabatrol Corporation · Inventors: Valiga, Richard E.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hazardous chemical waste materials can be vaulted for permanent disposal by encapsulation in a water-impermeable film and a soil cement.
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 June 9, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 1998.
- 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 29, 1979
GrantedJune 9, 1981
Term endedJune 9, 1998
Patent numberCA 1102567 A
Classification (IPC)E02D3/12 +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.