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US3249504A Expired / Lapsed US ⏱️ 0.0 years remaining

Multiple unit tissue culture preparation and method of preparing same

Assignee: Becton Dickinson and Co
•
Filing: 1962-03-13
•
Granted: 1966-05-03
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Expires: 1982-03-13
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Abstract

No abstract record available.

Inventors

  • 👤 Leona R Cappel
  • 👤 Norman O Cappel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 21:01
CPC Classifications
C; C12; C12M; C12M21/00; C12M21/08; C12M23/00; C12M23/02; C12M23/08; C12M29/00; C12M29/20

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 180 words
A COMPLETE TISSUE CULTURE PREPARATION HAVING A STABLE AQUEOUS COMPONENT AND A STABLE DRY COMPONENT IN WHICH THE COMPONENTS ARE RAPIDLY RECONSTITUTED FOR IMMEDIATE USE AS MEDIA FOR CULTURING TISSUE IN VITRO, SAID DRY COMPONENT BEING ASEPTICALLY SEALED AND HAVING A UNIFORMLY DISTRIBUTED MIXTURE OF LABILE INGREDIENTS OF A TISSUE CULTURE PREPARATION INCLUDING AT LEAST AMINO ACID, ANTIBIOTIC, VITAMIN, AND HAVING SERUM UNIFORMLY AND INTIMATELY MIXED THEREIN, SAID DRY MIXTURE BEING IN LYOPHILIZED FORM, SAID LYOPHILIZED MIXTURE HAVING VOLATILE BUFFERING COMPONENTS REMOVED THEREFROM DURING LYOPHILIZATION, SAID MIXTURE HAVING ANINITIAL PH OF BETWEEN 3.0 AND 8.0, SAID AQUEOUS COMPONENT BEING COMPRISED OF A STABLE BALANCED BUFFERED SALT SOLUTION OF INORGANIC MATERIAL AND STABLE CARBOHYDRATE ASEPTICALLY SEALED AND HAVING AN INITIAL PH OF BETWEEN 3.0 AND 8.0, ONE O SAID COMPONENTS COMPENSATING FOR THE LOSS OF SAID VOLATILE BUFFERING COMPONENTS SO THAT THE ULTIMATE PH IS BETWEEN 6.0 AND 8.0 WHEN SAID TISSUE CULTURE PREPARATION IS RESTORED, AND CONNECTING MEANS FOR CONNECTING THE ASCEPTICALLY SEALED DRY COMPONENT WITH THE ASCEPTICALY SEALED AQUEIOUS COMPONENT FOR RECONSTITUTING THE COMPONENTS BY MIXING THE COMPONENTS TOGETHER.
Claim 2
Dependent Claim 180 words
A COMPLETE TISSUE CULTURE PREPARATION HAVING A STABLE AQUEOUS COMPONENT AND A STABLE DRY COMPONENT IN WHICH THE COMPONENTS ARE RAPIDLY RECONSTITUTED FOR IMMEDIATE USE AS MEDIA FOR CULTURING TISSUE IN VITRO, SAID DRY COMPONENT BEING ASEPTICALLY SEALED AND HAVING A UNIFORMLY DISTRIBUTED MIXTURE OF LABILE INGREDIENTS OF A TISSUE CULTURE PREPARATION INCLUDING AT LEAST AMINO ACID, ANTIBIOTIC, VITAMIN, AND HAVING SERUM UNIFORMLY AND INTIMATELY MIXED THEREIN, SAID DRY MIXTURE BEING IN LYOPHILIZED FORM, SAID LYOPHILIZED MIXTURE HAVING VOLATILE BUFFERING COMPONENTS REMOVED THEREFROM DURING LYOPHILIZATION, SAID MIXTURE HAVING ANINITIAL PH OF BETWEEN 3.0 AND 8.0, SAID AQUEOUS COMPONENT BEING COMPRISED OF A STABLE BALANCED BUFFERED SALT SOLUTION OF INORGANIC MATERIAL AND STABLE CARBOHYDRATE ASEPTICALLY SEALED AND HAVING AN INITIAL PH OF BETWEEN 3.0 AND 8.0, ONE O SAID COMPONENTS COMPENSATING FOR THE LOSS OF SAID VOLATILE BUFFERING COMPONENTS SO THAT THE ULTIMATE PH IS BETWEEN 6.0 AND 8.0 WHEN SAID TISSUE CULTURE PREPARATION IS RESTORED, AND CONNECTING MEANS FOR CONNECTING THE ASCEPTICALLY SEALED DRY COMPONENT WITH THE ASCEPTICALY SEALED AQUEIOUS COMPONENT FOR RECONSTITUTING THE COMPONENTS BY MIXING THE COMPONENTS TOGETHER.

References Cited (Backward Citations)

US2149304A Cited
US2176041A Cited
US2552360A Cited
GB798147A Cited
US3024167A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-05-02 1969-11-01 1970-05-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-05-02 1973-11-01 1974-05-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-05-02 1977-11-01 1978-05-03 $7700.00 Window Closed / Lapsed

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