US3841971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic enzymes adsorbed within porous inorganic carriers
Assignee: Corning Glass Works
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Filing: 1973-02-16
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Granted: 1974-10-15
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Expires: 1993-02-16
Abstract
Abstract 1. AN IMMOBILIZED ENZYME COMPOSITE COMPRISING TWO SYNERGISTIC ENZYMES ADSORBED TO THE INTERNAL SURFACE OF A HIGH SURFACE AREA, POROUS TITANIA BODY, THE POROUS TITANIA BODY HAVING AN AVERAGE PORE DIAMETER AT LEAST AS LARGE AS THE LARGEST DIMENSION OF THE LARGER ENZYME BUT LESS THAN 1000 A., AND THE TWO SYNERGISTIC ENZYMES SELECTED FROM THE GROUP CONSISTING OF GLUCOSE OXIDASE AND CATALASE, GALACTOSE OXIDASE AND CATALASE, D-AMINO ACID OXIDASE AND CATALASE, CHYMOTRYPSIN AND TRYPSIN, AND PAPAIN AND STREPTOCOCCUS PEPTIDASE A.
Inventors
- 👤 R Messing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:26
CPC Classifications
C; C12; C12N; C12N11/00; C12N11/18; C12N11/14; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN IMMOBILIZED ENZYME COMPOSITE COMPRISING TWO SYNERGISTIC ENZYMES ADSORBED TO THE INTERNAL SURFACE OF A HIGH SURFACE AREA, POROUS TITANIA BODY, THE POROUS TITANIA BODY HAVING AN AVERAGE PORE DIAMETER AT LEAST AS LARGE AS THE LARGEST DIMENSION OF THE LARGER ENZYME BUT LESS THAN 1000 A., AND THE TWO SYNERGISTIC ENZYMES SELECTED FROM THE GROUP CONSISTING OF GLUCOSE OXIDASE AND CATALASE, GALACTOSE OXIDASE AND CATALASE, D-AMINO ACID OXIDASE AND CATALASE, CHYMOTRYPSIN AND TRYPSIN, AND PAPAIN AND STREPTOCOCCUS PEPTIDASE A.
Claim 2
Dependent Claim
80 words
AN IMMOBILIZED ENZYME COMPOSITE COMPRISING TWO SYNERGISTIC ENZYMES ADSORBED TO THE INTERNAL SURFACE OF A HIGH SURFACE AREA, POROUS TITANIA BODY, THE POROUS TITANIA BODY HAVING AN AVERAGE PORE DIAMETER AT LEAST AS LARGE AS THE LARGEST DIMENSION OF THE LARGER ENZYME BUT LESS THAN 1000 A., AND THE TWO SYNERGISTIC ENZYMES SELECTED FROM THE GROUP CONSISTING OF GLUCOSE OXIDASE AND CATALASE, GALACTOSE OXIDASE AND CATALASE, D-AMINO ACID OXIDASE AND CATALASE, CHYMOTRYPSIN AND TRYPSIN, AND PAPAIN AND STREPTOCOCCUS PEPTIDASE A.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |