Surgery – Male reproductory tract shields or birth control devices
Patent
1997-03-20
1998-02-10
Brown, Michael A.
Surgery
Male reproductory tract shields or birth control devices
128844, A61F 602
Patent
active
057158398
ABSTRACT:
Multiple ringed condoms providing improved user protection and safety from leakage and slippage are provided by adding one or more additional rings above the conventional base ring at the opening of the condom.
REFERENCES:
patent: 3130721 (1964-04-01), Young
patent: 4798600 (1989-01-01), Meadows
patent: 5370130 (1994-12-01), Hess
patent: 5425379 (1995-06-01), Broad
patent: 5467781 (1995-11-01), Kato
patent: 5490519 (1996-02-01), Hessel
patent: 5579784 (1996-12-01), Harari
Sisbarro Frederick P.
Strauss Steven R.
Brown Michael A.
Carter-Wallace Inc.
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