Patent US2268913A successfully refreshed from Google Patents.
US2268913A
Expired / Lapsed
US
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Lead pigment
Assignee: EAGLE PICHER LEAD Co
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Filing: 1939-08-22
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Granted: 1942-01-06
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Expires: 1959-08-22
Abstract
No abstract record available.
Inventors
- 👤 Forrest L Turbett
- 👤 George J Vahrenkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:04
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/14; C01; C01P; C01P2002/00; C01P2002/02; C01P2004/00; C01P2004/80; C01P2004/82; C01P2006/00; C01P2006/60; C01P2006/80; C01P2006/82
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) | 1945-01-05 | 1945-07-07 | 1946-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-01-05 | 1949-07-07 | 1950-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-01-05 | 1953-07-07 | 1954-01-06 | $7700.00 | Window Closed / Lapsed |