US3418085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing channel black
Assignee: Cabot Corp
•
Filing: 1967-05-02
•
Granted: 1968-12-24
•
Expires: 1987-05-02
Abstract
No abstract record available.
Inventors
- 👤 Floyd C Adams
- 👤 Roy N Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:28
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/52; B; B01; B01J; B01J19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3127245A
Cited
US2719078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |