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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
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Filing: 1962-03-13
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Granted: 1966-05-03
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Expires: 1982-03-13
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 13:05
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)
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 |