US3383232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing furnace black pigments
Assignee: Cabot Corp
•
Filing: 1966-01-10
•
Granted: 1968-05-14
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Expires: 1986-01-10
Abstract
No abstract record available.
Inventors
- 👤 Merrill E Jordan
- 👤 Hugh J Deery
- 👤 Hagopian Erivan
- 👤 Frank R Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:46
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/565; C01; C01P; C01P2006/00; C01P2006/12; C01P2006/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2686107A
Cited
US2682448A
Cited
US3023118A
Cited
US3024092A
Cited
US3178304A
Cited
US3245820A
Cited
US3279935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |