Patent US2855347A successfully refreshed from Google Patents.
US2855347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coke ovens and the like and doors and like closures therefor
Assignee: Individual
•
Filing: 1955-12-14
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Granted: 1958-10-07
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Expires: 1975-12-14
Abstract
No abstract record available.
Inventors
- 👤 Cellan-Jones Gwynne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:09
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A DOOR OR LIKE END CLOSURE FOR A COKE OVEN OR THE LIKE, INCLUDING A BRICKWOOD LINING FORMED AS A PLUG TO ENTER THE END OF SAID OVEN, SAID DOOR HAVING A PASSAGE OR SPACE FORMED WITHIN TO ALLOW GASES WHICH COLLECT AT THE ENDS OF THE OVEN TO PASS TO THE SPACE WITHIN THE OVEN AND BETWEEN THE CROWN OF THE OVEN AND THE TOP OF THE CHARGE, THE SAID PRESSURE BEING PROVIDED BY AT LEAST ONE DUCT FORMED WHOLLY WITHIN THE SAID BRICKWORK LINING OF THE DOOR, SAID DUCT HAVING AN ORIFICE BELOW THE LEVEL OF A CHARGE IN THE OVEN AND EXTENDING FROM AT LEAST ONE POSITION ON A SURFACE OF THE SAID BRICKWORK LINING WHICH WILL NOT BE IN DIRECT CONTACT WITH A CHARGE IN THE OVEN AND WHICH POSITION IS BELOW THE LEVEL OF A CHARGE IN THE OVEN TO AT LEAST ONE POSITION ON A SIDE VERTICAL FACE OF SAID BRICKWORK WHICH WILL BE ADJACENT TO AND SPACED FROM A SIDE WALL OF THE OVEN.
Claim 2
Dependent Claim
171 words
A DOOR OR LIKE END CLOSURE FOR A COKE OVEN OR THE LIKE, INCLUDING A BRICKWOOD LINING FORMED AS A PLUG TO ENTER THE END OF SAID OVEN, SAID DOOR HAVING A PASSAGE OR SPACE FORMED WITHIN TO ALLOW GASES WHICH COLLECT AT THE ENDS OF THE OVEN TO PASS TO THE SPACE WITHIN THE OVEN AND BETWEEN THE CROWN OF THE OVEN AND THE TOP OF THE CHARGE, THE SAID PRESSURE BEING PROVIDED BY AT LEAST ONE DUCT FORMED WHOLLY WITHIN THE SAID BRICKWORK LINING OF THE DOOR, SAID DUCT HAVING AN ORIFICE BELOW THE LEVEL OF A CHARGE IN THE OVEN AND EXTENDING FROM AT LEAST ONE POSITION ON A SURFACE OF THE SAID BRICKWORK LINING WHICH WILL NOT BE IN DIRECT CONTACT WITH A CHARGE IN THE OVEN AND WHICH POSITION IS BELOW THE LEVEL OF A CHARGE IN THE OVEN TO AT LEAST ONE POSITION ON A SIDE VERTICAL FACE OF SAID BRICKWORK WHICH WILL BE ADJACENT TO AND SPACED FROM A SIDE WALL OF THE OVEN.
References Cited (Backward Citations)
US1056270A
Cited
US2571597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |