US3422098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfanilamido-pyrimidines
Assignee: BASF Corp
•
Filing: 1964-03-10
•
Granted: 1969-01-14
•
Expires: 1984-03-10
Abstract
No abstract record available.
Inventors
- 👤 Paul Schmidt
- 👤 Ernst Schweizer
- 👤 Kurt Eichenberger
- 👤 Max Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:52
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/30; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/505; C07D239/32; C07D239/34; C07D239/36; C07D239/42; C07D239/46; C07D239/47; C07D239/52; C07D239/54; C07D239/545; C07D239/553; C07D239/60; C07D239/69
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2350265A
Cited
US2407966A
Cited
US2703800A
Cited
US2891949A
Cited
US3082206A
Cited
US3091610A
Cited
FR1329276A
Cited
FR1329867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |