US2947743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N4-aminoacetyl-, n4-lower alkylaminoacetyl- and n4-di-lower alkylamino-acetyl-6-sulfanilamido-2, 4-dimethoxypyrimidines
Assignee: F Hoffmann La Roche AG
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Filing: 1959-05-12
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Granted: 1960-08-02
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Expires: 1979-05-12
Abstract
No abstract record available.
Inventors
- 👤 Hoffer Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:30
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/69
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A COMPOUND OF THE GROUP CONSISTING OF N4-((R1,R2AMINO)-ACETYL)-6-SULFANILAMIDO-2,4-DIMETHOXYPYRIMIDINE, WHEREIN R1 AND R2 EACH REPRESENTS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND LOWER ALKYL, AND MEDICINALLY ACCEPTABLE ACID ADDITION SALTS THEREOF.
Claim 2
Dependent Claim
32 words
A COMPOUND OF THE GROUP CONSISTING OF N4-((R1,R2AMINO)-ACETYL)-6-SULFANILAMIDO-2,4-DIMETHOXYPYRIMIDINE, WHEREIN R1 AND R2 EACH REPRESENTS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND LOWER ALKYL, AND MEDICINALLY ACCEPTABLE ACID ADDITION SALTS THEREOF.
References Cited (Backward Citations)
GB599967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |