Waste disposal device
CA 2105554 C · Owner: Smith, James N. · Inventors: Smith, James N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vacuum waste collection system is provided with an under-the-counter receptacle that can be used to remove dust etc. that is swept into it. The door on this receptacle is spring loaded so that it opens by contact from a foot making it unnecessary for the householder to bend over to use the system.
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 September 3, 1993 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 2015.
- 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.