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Last Updated: May 14, 2021

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Details for Patent: 4,957,119

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Summary for Patent: 4,957,119
Title: Contraceptive implant
Abstract:The invention relates to an implant of polymeric material which can release a contraceptive agent for a relatively long time when fitted subcutaneously or locally. The implant comprises a core material of ethylene/vinyl acetate copolymer which functions as a matrix for a contraceptive substance, an ethylene/vinyl acetate membrane encasing the core material, and a contact layer at the interface of the core material and membrane which prevents the separation of the core material from the membrane. The implant of the invention is made by a co-extrusion process.
Inventor(s): de Nijs; Hendrik (Oss, NL)
Assignee: Akzo N.V. (Arnhem, NL)
Application Number:07/229,066
Patent Claim Types:
see list of patent claims
Device; Use;

Drugs Protected by US Patent 4,957,119

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 4,957,119

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Netherlands8701868Aug 08, 1987

International Family Members for US Patent 4,957,119

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 86484   Get Started for $10
Australia 2044988   Get Started for $10
Australia 603475   Get Started for $10
Canada 1309949   Get Started for $10
China 1024753   Get Started for $10
China 1031323   Get Started for $10
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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