US2931804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted aziridines
Assignee: Novartis Corp
•
Filing: 1958-07-07
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Granted: 1960-04-05
•
Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 John D Spivack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:42
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/6426; C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221; D06P5/00; D06P5/22; D06P5/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB678103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |