Sponge collection device
CA 2044917 A1 · Owner: Westlake, Betsy · Inventors: Westlake, Betsy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sponge collection device comprising, a backing sheet of flexible material having a front surface a rear surface, a pair, of side edges, and a pair of end edges connecting the side edges. The device has a plurality of pockets progressively disposed on the front surface of the backing sheet intermediate the end edges, with the pockets comprising a flap of flexible material having a paid of side edges, and an upper edge extending between the side edges. The side portions of the flap adjacent its side edges are joined to the backing sheet adjacent to the side edges of the backing sheet, with the upper edge of the flap defining an opening intermediate the flap and backing sheet to receive …
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 June 18, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2013.
- 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.