US3423180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of soluble sulfide compounds
Assignee: Universal Oil Products Co
•
Filing: 1966-12-27
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Granted: 1969-01-21
•
Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 James Hoekstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:34
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C10K1/12; C01; C01B; C01B17/00; C01B17/02; C01B17/06; C02; C02F; C02F1/00; C02F1/72; C02F1/725; C02F11/00; C02F11/06; C02F11/08; C02F1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2419324A
Cited
US2559325A
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US2586914A
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US2809885A
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US2972512A
Cited
US3034865A
Cited
US3087793A
Cited
US3149920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |