Hazardous waste disposal method and drum assembly
CA 2023686 C · Owner: Marinaccio, Lou A. · Inventors: Marinaccio, Lou A.; Hale, James A.; Sawyer, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drum assembly for the collection and disposal of hazardous waste includes an enclosure with an access hole for collecting the waste. After the waste has been collected the drum is, opened and an insert is positioned to cover the access hole. The drum is then closed to form a sealed container.
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 August 21, 1990 and granted April 23, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 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.