US3082206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel 4-(p-aminobenzenesulphonamido)-2:6-diphenoxypyrimidines
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1959-11-02
•
Granted: 1963-03-19
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Expires: 1979-11-02
Abstract
No abstract record available.
Inventors
- 👤 Langley Bernard William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:49
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/69; C09; C09B; C09B43/00; C09B43/32; C09B43/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A PYRIMIDINE OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A PYRIMIDINE OF THE FORMULA:
References Cited (Backward Citations)
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Cited
GB517272A
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US2407966A
Cited
US2430439A
Cited
US2540356A
Cited
DE926131C
Cited
AT175895B
Cited
US2703800A
Cited
US2712012A
Cited
US2891953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |