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US3467502A
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Feedstock control system for carbon black reactors
Assignee: Continental Carbon Co
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Filing: 1966-10-12
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Granted: 1969-09-16
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Expires: 1986-10-12
Abstract
No abstract record available.
Inventors
- 👤 Jerry E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:48
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B01; B01J; B01J19/00; Y; Y10; Y10S; Y10S208/00; Y10S208/01; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0352
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1097196A
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US2785960A
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US2883271A
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US2886567A
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US3038788A
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US3165522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |