Patent US3171831A successfully refreshed from Google Patents.
US3171831A
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Thiolation of proteins by reaction with homocysteine thiolactone in the presence of tertiary amine
Assignee: SCHWARZ BIORES Inc
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Filing: 1961-02-14
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Granted: 1965-03-02
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Expires: 1981-02-14
Abstract
No abstract record available.
Inventors
- 👤 Town Bernard William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:09
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/48; A61K9/4816; A61K9/4825; A61K9/20; A61K9/2004; A61K9/2022; A61K9/2063; A61K9/4891; H; H02; H02K; H02K19/00; H02K19/16; H02K19/38; H02P; H02P9/00; H02P9/10; H02P9/102; H02P2101/00; H02P2101/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
PROCESS FOR THE THIOLATION OF PROTEINS HAVING AVAILABLE FREE AMINO GROUPS WHICH COMPRISES REACTING SUCH A PROTEIN WITH HOMOCYSTEINE THIOLACTONE IN THE PRESENCE OF A SUFFICIENT AMOUNT OF A TERTIARY AMINE SELECTED FROM THE GROUP CONSISTING OF TRIMETHYL AMINE, TRIETHYL AMINE, AND DIETHYL ETHANOL AMINE TO MAINTAIN THE PH OF THE REACTION MIXTURE ABOVE THE PH VALUE OF SAID FREE AMINO GROUP OF THE PROTEIN AND RECOVERING THE THIOLATED PROTEIN FORMED.
Claim 2
Dependent Claim
71 words
PROCESS FOR THE THIOLATION OF PROTEINS HAVING AVAILABLE FREE AMINO GROUPS WHICH COMPRISES REACTING SUCH A PROTEIN WITH HOMOCYSTEINE THIOLACTONE IN THE PRESENCE OF A SUFFICIENT AMOUNT OF A TERTIARY AMINE SELECTED FROM THE GROUP CONSISTING OF TRIMETHYL AMINE, TRIETHYL AMINE, AND DIETHYL ETHANOL AMINE TO MAINTAIN THE PH OF THE REACTION MIXTURE ABOVE THE PH VALUE OF SAID FREE AMINO GROUP OF THE PROTEIN AND RECOVERING THE THIOLATED PROTEIN FORMED.
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |