Condom
CA 2066386 A1 · Owner: Smith, David · Inventors: Smith, David; Smith, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A condom comprising a cap adapted to fit on the head of a penis the, cap comprising an inner layer (1) and an outer layer (2) defining a chamber therebetween, the inner layer (1) having an opening (6) for passage of semen (8) into the chamber to be retained therein and ribs (3) provided between the, inner layer (1) and the outer layer (2) in order to separate the inner layer (1)and the outer layer (2) and facilitate the passage of the semen (8) into the chamber. The ribs (3) may be of substantially annular form and spaced apart longitudinally from the opening (6) along a longitudinal axis defined through the centre of the opening (6).
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 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 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.