Patent US2166230A successfully refreshed from Google Patents.
US2166230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tinted pigments and process for producing the same
Assignee: EIDP Inc
•
Filing: 1937-02-18
•
Granted: 1939-07-18
•
Expires: 1957-02-18
Abstract
No abstract record available.
Inventors
- 👤 James E Booge
- 👤 Axel B Laftman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:58
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/04; C09C1/06; C01; C01P; C01P2002/00; C01P2002/50; C01P2004/00; C01P2004/80; C01P2004/82; C01P2006/00; C01P2006/19; C01P2006/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1942-07-17 | 1943-01-16 | 1943-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-17 | 1947-01-16 | 1947-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-17 | 1951-01-16 | 1951-07-18 | $7700.00 | Window Closed / Lapsed |