Gasketless wet/dry vacuum with switchable blowing feature
CA 2337313 C · Owner: Steger, Christopher J. · Inventors: Steger, Christopher J.; Martin, Michael F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The vacuum includes a body having a main air passageway and first and second air passageways diverging from the main passageway. The first air passageway defines a blower port. A closable door having an open and a closed position directs air flow from the main air passageway to either the first or second diverging air passageways to switch between vacuum and blowing modes. In one embodiment the wet/dry vacuum assembly is arranged such that each of the component parts may be placed in an assembly fixture and attached to a unit without reorienting the assembly.
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 February 15, 2001 and granted April 19, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2023.
- 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.