US3574062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of immobilizing enzymes and product
Assignee: Beckman Coulter Inc
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Filing: 1967-04-20
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Granted: 1971-04-06
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Expires: 1987-04-20
Abstract
Abstract A METHOD OF IMMOBILIZING ENZYMES BY REACTING AN ENZYME WITH A DIAZO-PROTEIN SUBSTRATE SUCH AS DIAZO-PROTEIN POLYURETHANE. THE SUBSTRATE MAY BE PREPARED BY DIAZOTIZING A POLYESTER POLYURETHANE AND COUPLING A PROTEIN TO THE DIAZOTIZED POLYURETHANE. THE IMMOBILIZED ENZYME MAY BE USED AS A CATALYST IN ANALYTICAL PROCEDURES AND THE SUBSTRATE IS PREFERABLY A RETICULATED STRUCTURE.
Inventors
- 👤 Takuya R Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:54
CPC Classifications
C; C12; C12N; C12N11/00; C12N11/02; C12Q; C12Q1/00; Y; Y10; Y10S; Y10S530/00; Y10S530/81; Y10S530/812; Y10S530/815; Y10S530/816
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |