US3561132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon black drying apparatus
Assignee: Phillips Petroleum Co
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Filing: 1969-09-10
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Granted: 1971-02-09
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Expires: 1989-09-10
Abstract
Abstract APPARATUS ID DISCLOSED WHICH COMPRISES A ROTARY CARBON BLACK DRIER, SUBJECTED TO PERMANENT ELONGATION OF ITS METALLIC SHELL, IN COMBINATION WITH TRUNNION SUPPORTS POSITIONED IN RELATION TO A FLAME EXTENDING CIRCUMFERENTIALLY TO, AND OUTWARDLY FROM, THE DRIER SHELL, THE TRUNNIONS BEING MOVABLY POSITIONABLE ALONG THE LENGTH OF THE DRIER COINCIDENTAL WITH THE REPOSITIONING OF THE FLANGE UPON ELONGATION OF THE DRIER SHELL.
Inventors
- 👤 John W La Grone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:47
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; F; F16; F16C; F16C13/00; F16C13/02; F16C13/04; F16C19/00; F16C19/50; F16C19/507
Claims Analysis
Total Claims: 0
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |