US2725384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing substituted pyrazoles
Assignee: Eastman Kodak Co
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Filing: 1952-08-05
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Granted: 1955-11-29
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Expires: 1972-08-05
Abstract
No abstract record available.
Inventors
- 👤 Donald M Burness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:43
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/12; C07D261/00; C07D261/02; C07D261/06; C07D261/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A PROCESS FOR PREPARING SUBSTITUTED PYRAZOLES COMPRISING CONDENSING TOGETHER A B-KETOACETAL SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
20 words
A PROCESS FOR PREPARING SUBSTITUTED PYRAZOLES COMPRISING CONDENSING TOGETHER A B-KETOACETAL SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL 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) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |