US2899443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing certain halogen-
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:22
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/384; C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/18; C07D231/20; C07D231/22; C07D231/44; C07D231/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
PROCESS OF HALOGENATING THE ARYL GROUPS IN A 5PYRAZOLONE WHICH COMPRISES TREATING A PYRAZOLONE OF THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
19 words
PROCESS OF HALOGENATING THE ARYL GROUPS IN A 5PYRAZOLONE WHICH COMPRISES TREATING A PYRAZOLONE OF THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |