US3647630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzymatically active composition having an insolubilized protease enzyme covalently bonded to a water insoluble polyanhydroglucose
Assignee: Procter and Gamble Co
•
Filing: 1969-09-29
•
Granted: 1972-03-07
•
Expires: 1989-09-29
Abstract
Abstract AN ENZYMATICALLY ACTIVE, WATER-SOLUBLE COMPOSITION IS PROVIDED CONSISTING ESSENTIALLY OF (1) A PROTEASE ENZYME COVALENTLY BONDED TO A WATER-INSOLUBLE MATRIX WHICH IS A DIAZOTIZED ANTHRANILATE ESTER OF A POLYANHYDROGLUCOSE COMPOUND. THE COMPOSITION IS USEFUL FOR APPLICATIONS WHERE IT IS DESIRED TO EMPLOY A WATER-INSOLUBLE ENZYMATICALLY ACTIVE CATALYST HAVING A PREFORMED MATRIX WITH GOOD MECHANICAL CHARACTERISTICS AND SPECIFICALLY SELECTED ENZYME ACTIVITY.
Inventors
- 👤 Neal E Franks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:09
CPC Classifications
C; C12; C12N; C12N11/00; C12N11/02; C12N11/10; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38609
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |