US3455939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-(4-chloro-3-sulfamoylphenyl)-1,4-dihydropyridines
Assignee: GlaxoSmithKline LLC
•
Filing: 1967-06-07
•
Granted: 1969-07-15
•
Expires: 1987-06-07
Abstract
No abstract record available.
Inventors
- 👤 Bernard Loev
- 👤 James W Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:15
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/80; C07D211/84; C07D211/90; C07D211/02; C07D211/82; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/32; C07D213/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2275354A
Cited
US3325505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |