Patent US2626258A successfully refreshed from Google Patents.
US2626258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Series of nitrofuran compounds comprising the acyl hydrazone ammonium salts of 5-nitroacyl furans
Assignee: Eaton Laboratories Inc
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Filing: 1950-05-29
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Granted: 1953-01-20
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Expires: 1970-05-29
Abstract
No abstract record available.
Inventors
- 👤 William C Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:22
CPC Classifications
A; A61; A61K; A61K31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
ACOMPOUND HAVING CHEMOTHERAPEUTIC ACTIVITY AND HIGH WATER SOLUBILITY, CONSISTING OF A MEMBER OF THE GROUP REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
19 words
ACOMPOUND HAVING CHEMOTHERAPEUTIC ACTIVITY AND HIGH WATER SOLUBILITY, CONSISTING OF A MEMBER OF THE GROUP REPRESENTED BY THE 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) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |