Patent US2697069A successfully refreshed from Google Patents.
US2697069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of coke from liquid hydrocarbons
Assignee: Godfrey L Cabot Inc
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Filing: 1951-03-03
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Granted: 1954-12-14
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Expires: 1971-03-03
Abstract
No abstract record available.
Inventors
- 👤 John M Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:39
CPC Classifications
C; C10; C10B; C10B55/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
APPARATUS FOR COKING LIQUID HYDROCARBONS INCLUDING, IN COMBINATION, A RETORT HAVING HEAT-INSULATED WALLS, A HOLLOW CYLINDER MOUNTED FOR ROTATION THEREIN, MEANS FOR SUPPLYING HEAT INTERNALLY TO THE CYLINDER, AN ELONGATED METAL BLADE SECURED TO A WALL OF THE RETORT AND EXTENDING DOWNWARDLY THEREFROM INTO TANGENTIAL CONTACT WITH THE CYLINDER THEREBY FORMING WITH THE CYLINDER A RESERVOIR FOR LIQUID HYDROCARBON AND SERVING ALSO AS A SCRAPER FOR REMOVING SOLID COKE FROM THE CYLINDER AND CLEANING
Claim 2
Dependent Claim
74 words
APPARATUS FOR COKING LIQUID HYDROCARBONS INCLUDING, IN COMBINATION, A RETORT HAVING HEAT-INSULATED WALLS, A HOLLOW CYLINDER MOUNTED FOR ROTATION THEREIN, MEANS FOR SUPPLYING HEAT INTERNALLY TO THE CYLINDER, AN ELONGATED METAL BLADE SECURED TO A WALL OF THE RETORT AND EXTENDING DOWNWARDLY THEREFROM INTO TANGENTIAL CONTACT WITH THE CYLINDER THEREBY FORMING WITH THE CYLINDER A RESERVOIR FOR LIQUID HYDROCARBON AND SERVING ALSO AS A SCRAPER FOR REMOVING SOLID COKE FROM THE CYLINDER AND CLEANING
References Cited (Backward Citations)
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US2237414A
Cited
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Cited
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Cited
US2571778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |