US2568334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a synthetic detergent composition
Assignee: Wyandotte Chemicals Corp
•
Filing: 1946-06-15
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Granted: 1951-09-18
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Expires: 1966-06-15
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Hill
- 👤 Clifton E Smith
- 👤 Thomas H Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:52
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2247365A
Cited
US2404289A
Cited
US2220099A
Cited
US2202741A
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US2347336A
Cited
US2335194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |