US2863865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compounds
Assignee: Pharmacia and Upjohn Co
•
Filing: 1956-11-02
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Granted: 1958-12-09
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Expires: 1976-11-02
Abstract
No abstract record available.
Inventors
- 👤 Brooke D Aspergren
- 👤 Richard V Heinzelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:33
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/02; C07D417/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
THE SULFOXIDE OF A 10-(2-PYRROLIDINOALKYL)PHENOTHIAZINE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF (A) COMPOUNDS HAVING THE FOLLOWING GENERAL STRUCTURAL FORMULA:
Claim 2
Dependent Claim
20 words
THE SULFOXIDE OF A 10-(2-PYRROLIDINOALKYL)PHENOTHIAZINE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF (A) COMPOUNDS HAVING THE FOLLOWING GENERAL STRUCTURAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |