US2607773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for preparing phenthi-
Assignee: —
•
Filing: —
•
Granted: 1952-08-19
•
Expires: 1969-08-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:04
CPC Classifications
C; C07; C07D; C07D279/00; C07D279/10; C07D279/14; C07D279/18; C07D279/22; C07D279/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A PROCESS FOR THE MANUFACTURE OF A 10-DIALKYLAMINOALKYL-PHENTHIAZINE WHICH COMPRISES REACTING A DIALKYLAMINOALKYL HALIDE WITH A COMPLEX OF A GRIGNARD REAGENT WITH A PHENTHIAZINE.
Claim 2
Dependent Claim
24 words
A PROCESS FOR THE MANUFACTURE OF A 10-DIALKYLAMINOALKYL-PHENTHIAZINE WHICH COMPRISES REACTING A DIALKYLAMINOALKYL HALIDE WITH A COMPLEX OF A GRIGNARD REAGENT WITH A PHENTHIAZINE.
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) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |