Patent US2535006A successfully refreshed from Google Patents.
US2535006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-oxo-5-cyano-4-imidazolinecarbonamide, salts thereof, and their preparation
Assignee: EIDP Inc
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Filing: 1950-04-05
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Granted: 1950-12-19
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Expires: 1970-04-05
Abstract
No abstract record available.
Inventors
- 👤 David W Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:42
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/90; C08; C08G; C08G12/00; C08G12/02; C08G12/26; C08G12/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
CHEMICAL COMPOUND SELECTED FROM THE CLASS CONSISTING OF 2-OXO-5-CYANO-4-IMIDAZOLINECARBONAMIDE AND ITS ALKALI METAL, ALKALINE EARTH METAL, AMINE AND AMMONIUM SALTS.
Claim 2
Dependent Claim
20 words
CHEMICAL COMPOUND SELECTED FROM THE CLASS CONSISTING OF 2-OXO-5-CYANO-4-IMIDAZOLINECARBONAMIDE AND ITS ALKALI METAL, ALKALINE EARTH METAL, AMINE AND AMMONIUM SALTS.
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) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |