US2426766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of organic substances
Assignee: EIDP Inc
•
Filing: 1941-09-27
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Granted: 1947-09-02
•
Expires: 1961-09-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Downing
- 👤 Charles J Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:56
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/762; C; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035; G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/305; G03C5/3053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2249602A
Cited
US2282936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |