US3075976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenthiazine derivatives
Assignee: Rhone Poulenc SA
•
Filing: 1958-10-17
•
Granted: 1963-01-29
•
Expires: 1978-10-17
Abstract
No abstract record available.
Inventors
- 👤 Jacob Robert Michel
- 👤 Robert Jacques Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:32
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/02; C07D417/06; C07D241/00; C07D241/36; C07D241/38; C07D241/40; C07D241/44; C07D267/00; C07D267/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2512520A
Cited
US2534237A
Cited
US2838505A
Cited
US2931810A
Cited
US2272498A
Cited
US2676971A
Cited
US2789978A
Cited
US2766135A
Cited
BE552557A
Cited
US2921069A
Cited
US2926164A
Cited
US2928767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |