Tetra Werke Dr. rer. nat. U. Baensch GmbH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5719189 Medicinal feed for the systemic treatment of ectoparasitic and ectobacterial diseases of fishExpiredAug 09, 94Feb 17, 98[A61K]
5712290 Medicinal feed for the systemic treatment of ectoparasitic and ectobacterial diseases of fishExpiredAug 23, 95Jan 27, 98[A61K, A23K]
5670513 Medicinal feed for the systemic treatment of ectoparasitic and ectobacterial diseases of fishExpiredJul 10, 95Sep 23, 97[A61K]
5618847 Medicinal feed for the systemic treatment of ectoparasitic and ectobacterial diseases of fishExpiredSep 22, 92Apr 08, 97[A61K]
4853242 Process for producing a fish foodExpiredFeb 17, 88Aug 01, 89[A23P, A23K]
4786434 Agent for the elimination of active chlorine compounds from waterExpiredFeb 08, 88Nov 22, 88[C02F]
D292439 Aquarium aeratorExpiredSep 25, 84Oct 20, 87[]
D291736 Aquarium aeratorExpiredSep 25, 84Sep 01, 87[]
4498417 Supply apparatus for the enrichment of aquarium water with CO.sub.2 -gasExpiredJun 28, 83Feb 12, 85[A01K]
4483368 Plug connection for aquarium pressure medium conduitsExpiredJul 27, 83Nov 20, 84[F16L]
4416037 Releasable connector in leashes for domestic animal, safety line or the likeExpiredJul 06, 81Nov 22, 83[A44B]
D269453 Garden pond filterExpiredJun 19, 80Jun 21, 83[D230]
4383924 Treatment of water, especially water for aquariaExpiredOct 06, 80May 17, 83[C02F]
4372858 Method of regenerating ion exchangersExpiredSep 15, 81Feb 08, 83[C02F]
4342401 Housing for aquarium filters having bayonet fastening meansExpiredApr 09, 81Aug 03, 82[B65D]

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