Suppression of spermatogenesis and an apparatus useful in suppression of spermatogenesis
CA 1093407 A · Owner: Fahim, Mostafa S. · Inventors: Fahim, Mostafa S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method useful in suppressing spermatogenesis in human males by applying ultrasonic vibrations to the testes is disclosed. More particularly the apparatus, includes a cup for immersing the testes in an ultrasonic coupling agent contained in the cup and an ultrasonic applicator for applying ultrasonic vibrations thereto. In the method the testes, are subjected to ultrasonic vibrations transmitted by the ultrasonic applicator. The frequency of the ultrasonic vibrations preferably is in the order between about 500 KHZ and 2500 KHZ whilst the effective power level of the ultrasonic applicator is between about 0.5 watt/cm2 and about 1 watt/cm2.
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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
- Granted January 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 13, 1998.
- 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.