Sexual aid
CA 2043560 C · Owner: Chang, Tao-Ping · Inventors: Chang, Tao-Ping
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sexual aid comprises a tubular body connecting to a connection piece with two bands sewn or adhered to its lower end and a guard sewn to its upper end for adjustment of tightness by a waistband adhered to the guard by adhesive tapes and passing through the holes at the bands. The tubular body is designed with a number of peaks and valleys running along spiral lines, and with a ring element to simulate the woman's private part in order to satisfy the woman, and make she come orgasmic phase quickly. The tubular body is a hollow structure with a hole at the front end for flowing of sperm.
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 May 30, 1991 and granted October 29, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 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.