US3060004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black apparatus
Assignee: United Carbon Co Inc
•
Filing: 1960-03-30
•
Granted: 1962-10-23
•
Expires: 1980-03-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Travis S Whitsel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:52
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B01; B01J; B01J19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A REACTOR FOR PRODUCING CARBON BLACK WHICH COMPRISES: A FIRST HOLLOW MEMBER OF A GENERALLY TUBLAR CONFIGURATION; A SECOND HOLLOW MEMBER ALSO OF A GENERALLY TUBULAR CONFIGURATION BUT OF SMALLER DIAMETER THAN SAID FIRST MEMBER, AT LEAST A PORTION OF SAID SECOND MEMBER BEING CIRCUMFERENTIALLY SURROUNDED BY SAID FIRST MEMBER WHEREBY A COMBUSTION ZONE IS FORMED THEREBETWEEN;
Claim 2
Dependent Claim
57 words
A REACTOR FOR PRODUCING CARBON BLACK WHICH COMPRISES: A FIRST HOLLOW MEMBER OF A GENERALLY TUBLAR CONFIGURATION; A SECOND HOLLOW MEMBER ALSO OF A GENERALLY TUBULAR CONFIGURATION BUT OF SMALLER DIAMETER THAN SAID FIRST MEMBER, AT LEAST A PORTION OF SAID SECOND MEMBER BEING CIRCUMFERENTIALLY SURROUNDED BY SAID FIRST MEMBER WHEREBY A COMBUSTION ZONE IS FORMED THEREBETWEEN;
References Cited (Backward Citations)
US1364273A
Cited
US2062358A
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US2498444A
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US2785054A
Cited
GB809538A
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US2924512A
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US2915371A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |