Patent US2260826A successfully refreshed from Google Patents.
US2260826A
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US
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Process for preparing improved pigment materials
Assignee: EIDP Inc
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Filing: 1939-11-04
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Granted: 1941-10-28
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Expires: 1959-11-04
Abstract
No abstract record available.
Inventors
- 👤 James E Booge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:45
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0081; C09C1/0084; C09C1/02; C09C1/021; C09C1/36; C09C1/3607; C09C1/3615; C09C1/3623; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/80; C01P2006/00; C01P2006/19; C01P2006/60; C01P2006/80
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) | 1944-10-27 | 1945-04-28 | 1945-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-27 | 1949-04-28 | 1949-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-27 | 1953-04-28 | 1953-10-28 | $7700.00 | Window Closed / Lapsed |