US2266233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment treatment
Assignee: EIDP Inc
•
Filing: 1940-05-02
•
Granted: 1941-12-16
•
Expires: 1960-05-02
Abstract
No abstract record available.
Inventors
- 👤 Ray L Mccleary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:22
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0081; C09C1/0084; C01; C01P; C01P2004/00; C01P2004/80; C01P2006/00; 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) | 1944-12-15 | 1945-06-16 | 1945-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-15 | 1949-06-16 | 1949-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-15 | 1953-06-16 | 1953-12-16 | $7700.00 | Window Closed / Lapsed |