Patent US3207758A successfully refreshed from Google Patents.
US3207758A
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US
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Certain 2-(benzenesulfonamido)-5-alkoxypyrimidines
Assignee: Bayer AG
•
Filing: 1961-06-21
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Granted: 1965-09-21
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Expires: 1981-06-21
Abstract
No abstract record available.
Inventors
- 👤 Worffel Udo
- 👤 Horstmann Harald
- 👤 Wirtz Sophie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:12
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/69
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A 2-BENZENE - SULFONAMIDO - 5-ALKOXY-PYRIMIDINE OF THE FORMULA:
Claim 2
Dependent Claim
9 words
A 2-BENZENE - SULFONAMIDO - 5-ALKOXY-PYRIMIDINE OF THE FORMULA:
References Cited (Backward Citations)
US2535635A
Cited
US2563725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |