Patent US3007918A successfully refreshed from Google Patents.
US3007918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiolation of carbohydrates
Assignee: Research Corp
•
Filing: 1959-05-14
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Granted: 1961-11-07
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Expires: 1979-05-14
Abstract
No abstract record available.
Inventors
- 👤 Benesch Reinhold
- 👤 Ruth E Benesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:06
CPC Classifications
C; C08; C08B; C08B31/00; C08B15/00; C08B15/05; C08B15/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD OF INTRODUCING GROUPS CONTAINING A THIOL GROUP INTO AMINIZED CARBOHYDRATES CONTAINING AT LEAST ONE -NH2 GROUP PER MOLECULE WHICH COMPRISES TREATING AN AMINIZED CARBOHYDRATE SELECTED FROM THE GROUP CONSISTING OF AMINOCELLULOSE AND AMINOSTARCH WITH AN N-ACYLHOMOCYSTEINE THIOLACTONE TO CONVERT AT LEAST ONE AMINE GROUP PER MOLECULE TO THE GROUP
Claim 2
Independent Claim
51 words
A METHOD OF INTRODUCING GROUPS CONTAINING A THIOL GROUP INTO AMINIZED CARBOHYDRATES CONTAINING AT LEAST ONE -NH2 GROUP PER MOLECULE WHICH COMPRISES TREATING AN AMINIZED CARBOHYDRATE SELECTED FROM THE GROUP CONSISTING OF AMINOCELLULOSE AND AMINOSTARCH WITH AN N-ACYLHOMOCYSTEINE THIOLACTONE TO CONVERT AT LEAST ONE AMINE GROUP PER MOLECULE TO THE GROUP
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) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |