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Patent US2885394A successfully refreshed from Google Patents.
US2885394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified saccharide compounds
Assignee: Lasdon Foundation Inc
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Filing: 1956-12-11
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Granted: 1959-05-05
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Expires: 1976-12-11
Abstract
No abstract record available.
Inventors
- 👤 Vincent C Barry
- 👤 Peter W D Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:44
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/18; C08B31/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
THE PROCESS WHICH COMPRISES REACTING AN OXIDIZED POLYSACCHARIDE HAVING AT LEAST TWO AVAILABLE CARBONYL FUNCTIONS WITH A MIXTURE OF ISONIAZID AND P-AMINOBENZALDEHYDE-THIOSEMICARBAZONE IN AN AQUEOUS REACTION MEDIUM CONTAINING A WATER-MISCIBLE ORGANIC SOLVENT FOR SAID MIXTURE.
Claim 2
Dependent Claim
35 words
THE PROCESS WHICH COMPRISES REACTING AN OXIDIZED POLYSACCHARIDE HAVING AT LEAST TWO AVAILABLE CARBONYL FUNCTIONS WITH A MIXTURE OF ISONIAZID AND P-AMINOBENZALDEHYDE-THIOSEMICARBAZONE IN AN AQUEOUS REACTION MEDIUM CONTAINING A WATER-MISCIBLE ORGANIC SOLVENT FOR SAID MIXTURE.
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) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |