Patent US2431211A successfully refreshed from Google Patents.
US2431211A
Expired / Lapsed
US
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Impression mixtures and ingredient therefor
Assignee: COE LAB Inc
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Filing: 1942-08-13
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Granted: 1947-11-18
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Expires: 1962-08-13
Abstract
No abstract record available.
Inventors
- 👤 Vance V Vallandigham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:25
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1564433A
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US1985900A
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US1985205A
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US2021059A
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US2135936A
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US2259638A
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US2249694A
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US2304308A
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US2325051A
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US2265118A
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US2331598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |