US3480555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sols of gamma ferric oxide and their preparation
Assignee: OCCIDENTIAL ELECTROCHEMICALS Corp
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Filing: 1964-05-11
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Granted: 1969-11-25
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 William M Jackson
- 👤 Frank W Hengeveld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:27
CPC Classifications
B; B82; B82Y; B82Y30/00; B01; B01J; B01J13/00; B01J13/0004; B01J13/0008; B01J13/0017; B01J41/00; B01J41/04; C; C01; C01G; C01G49/00; C01G49/02; C01G49/06; G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/706; G11B5/70626; G11B5/70642; G11B5/70647; G11B5/70652; H; H01; H01F; H01F1/00; H01F1/44; H01F1/445; C01P; C01P2004/00; C01P2004/60; C01P2004/64
Claims Analysis
Total Claims: 0
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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) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |