Bag tensioner device
CA 2086022 A1 · Owner: Saunders, Craig M. · Inventors: Zahuranec, Terry L.; Rogers, Dennis; Saunders, Craig M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A bag securing and tensioning system for a vacuum cleaner includes a duct for directing a flow of dirt-laden air from an inlet thereof to an outlet thereof a porous, outer bag and a connection member for releasably mounting the outer bag to the outlet end of the duct. The connection member includes a longitudinally extending slot located in a handle of the vacuum cleaner and a bag guide member including an extension slidably mounted in the slot. A bag clip is secured to the bag guide member. The bag clip holds an end of the porous outer bag.
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 December 22, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2014.
- 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.