Ring-shaped tampon
CA 2285989 A1 · Owner: Etheredge, Robert · Inventors: Etheredge, Robert; Scocca, Marion
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An absorbent article for absorption of bodily fluids is provided including a , layer of non-absorbent material defining a tunnel shaped loop and a central portion enclosed by the loop, and an absorbent material retained within the tunnel-shaped loop. The non-absorbent material includes a plurality of apertures through which fluid can flow to reach the absorbent material and an , overwrap material overlies the non-absorbent material to transport fluid over the surface of non-absorbent material. Preferably the absorbent article is a tampon and the loop is ring shaped.
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 April 13, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 13, 2020.
- 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.