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Patent US2181122A successfully refreshed from Google Patents.
US2181122A
Expired / Lapsed
US
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Stabilization of organic substances
Assignee: EIDP Inc
•
Filing: 1938-01-20
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Granted: 1939-11-28
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Expires: 1958-01-20
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Downing
- 👤 Charles J Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:17
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/305; G03C5/3053; C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/182; C10L1/183; C10L1/22; C10L1/222; C10L1/223; C10L1/2235; C10L1/228; C10L1/2283; C10L1/232; C10M; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/14; C10M2215/16; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17
Claims Analysis
Total Claims: 0
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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) | 1942-11-27 | 1943-05-29 | 1943-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-11-27 | 1947-05-29 | 1947-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-11-27 | 1951-05-29 | 1951-11-28 | $7700.00 | Window Closed / Lapsed |