US2457591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophilic-organophilic pigments and methods for producing same
Assignee: EIDP Inc
•
Filing: 1946-01-12
•
Granted: 1948-12-28
•
Expires: 1966-01-12
Abstract
No abstract record available.
Inventors
- 👤 Moore Maryalice Conley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:33
CPC Classifications
C; C08; C08F; C08F292/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2245129A
Cited
US2205722A
Cited
US2282006A
Cited
US2278878A
Cited
US2285009A
Cited
US2341759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-28 | 1952-06-28 | 1952-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-28 | 1956-06-28 | 1956-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-28 | 1960-06-28 | 1960-12-28 | $7700.00 | Window Closed / Lapsed |