Patent US3876193A successfully refreshed from Google Patents.
Patent US3064000A successfully refreshed from Google Patents.
US3064000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
S-benzoylthiamine o-monophosphate and a process for preparing the same
Assignee: Sankyo Co Ltd
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Filing: 1960-04-05
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Granted: 1962-11-13
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Expires: 1980-04-05
Abstract
No abstract record available.
Inventors
- 👤 Ito Akira
- 👤 Hamanaka Wataru
- 👤 Takagi Hiromu
- 👤 Wada Tadao
- 👤 Kawada Katsuro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:35
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/113
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
34 words
A PROCESS FOR PREPARING S-BENZOYLTHIAMINE O-MONOPHOSPHATE WHICH COMPRISES REACTING THIAMINE MONOPHOSPHATE WITH SODIUM BENZOYLTHIOSULFATE AT PH OF ABOUT 7-14 IN WATER TO FORM S-BENZOYLTHIAMINE O-MONOPHOSPHATE AND ISOLATING S-BENZOYLTHIAMINE O-MONOPHOSPHATE FORMED FROM THE REACTION MIXTURE.
Claim 4
Dependent Claim
34 words
A PROCESS FOR PREPARING S-BENZOYLTHIAMINE O-MONOPHOSPHATE WHICH COMPRISES REACTING THIAMINE MONOPHOSPHATE WITH SODIUM BENZOYLTHIOSULFATE AT PH OF ABOUT 7-14 IN WATER TO FORM S-BENZOYLTHIAMINE O-MONOPHOSPHATE AND ISOLATING S-BENZOYLTHIAMINE O-MONOPHOSPHATE FORMED FROM THE REACTION MIXTURE.
Claim 5
Dependent Claim
47 words
A PROCESS FOR PREPARING S-BENZOYLTHIAMINE O-MONOPHOSPHATE WHICH COMPRISES REACTING THIAMINE MONOPHOSPHATE DISTRIBUTED IN AN ADMIXTURE OF WATER AND ORGANIC SOLVENT WITH A SOLUTION OF DIBENZOYL DISULFIDE DISSOLVED IN ORGANIC SOLVENT AND ISOLATING THE DESIRED S-BENZOYLTHIAMINE O-MONOPHOSPHATE FROM THE AQUEOUS LAYER OBTAINED SEPARATION OF THE ORGANIC SOLVENT LAYER.
Claim 6
Dependent Claim
47 words
A PROCESS FOR PREPARING S-BENZOYLTHIAMINE O-MONOPHOSPHATE WHICH COMPRISES REACTING THIAMINE MONOPHOSPHATE DISTRIBUTED IN AN ADMIXTURE OF WATER AND ORGANIC SOLVENT WITH A SOLUTION OF DIBENZOYL DISULFIDE DISSOLVED IN ORGANIC SOLVENT AND ISOLATING THE DESIRED S-BENZOYLTHIAMINE O-MONOPHOSPHATE FROM THE AQUEOUS LAYER OBTAINED SEPARATION OF THE ORGANIC SOLVENT LAYER.
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) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |