Patent US3788950A successfully refreshed from Google Patents.
US3788950A
Expired / Lapsed
US
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Enzyme gel and use therefor
Assignee: EIDP Inc
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Filing: 1970-08-05
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Granted: 1974-01-29
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Expires: 1990-08-05
Abstract
Abstract A SUBSTANTIALLY RIGID ENZYME GEL, USEFUL IN PROCESS INCORPORATING ENZYME CATALYSTS, SUCH AS SUBSTRATE ANALYSIS, COMPRISING A POLYMER MATRIX HAVING WATER COLLOIDALLY DISPERSED THEREIN AND ACTIVE ENZYME MOLECULES DISTRIBUTED HOMOGENEOUSLY THROUGHOUT AND SUBSTANTIALLY UNREACTED WITH THE POLYMER MATRIX THE POLYMER MATRIX HAVING A SUFFICIENTLY SMALL PORE SIZE TO RETAIN INDIVIDUAL ENZYME MOLECULES, I.E. THE ENZYME IN AQUEOUS SOLUTION. THE GEL IS FORMED BY POLYMERIZING AN AQUEOUS SOLUTION OF A MONOMER, FOR EXAMPLE AN ACRYLAMIDE, CONTAINING AN ENZYME UNDER CONDIDTIONS NOT DETRIMENTAL TO THE ACTIVITY OF THE ENZYME.
Inventors
- 👤 G Hicks
- 👤 S Updike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:57
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/44; C12; C12Q; C12Q1/00; C12Q1/001; C12Q1/002; C12Q1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |