Patent US2965550A successfully refreshed from Google Patents.
US2965550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coke oven door
Assignee: United States Steel Corp
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Filing: 1957-08-27
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Granted: 1960-12-20
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Expires: 1977-08-27
Abstract
No abstract record available.
Inventors
- 👤 James N Mcclure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:37
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A COKE OVEN DOOR ASSEMBLY COMPRISING A DOOR JAMB HAVING A SEALING SURFACE AROUND ITS PERIPHERY, A RIGID DOOR FRAME, MEANS FOR SUPPORTING SAID DOOR ADJACENT SAID JAMB, A HIGH TEMPERATURE RESISTANT SEALING RING CARRIED BY SAID DOOR FRAME, SAID SEALING RING INCLUDING A PORTION SPACED FROM SAID DOOR FRAME AND GENERALLY PARALLEL TO SAID SEALING SURFACE AND A FLANGE ON THE FREE END OF SAID PORTION EXTENDING INWARDLY TO CONTACT SAID SEALING SURFACE,
Claim 2
Dependent Claim
74 words
A COKE OVEN DOOR ASSEMBLY COMPRISING A DOOR JAMB HAVING A SEALING SURFACE AROUND ITS PERIPHERY, A RIGID DOOR FRAME, MEANS FOR SUPPORTING SAID DOOR ADJACENT SAID JAMB, A HIGH TEMPERATURE RESISTANT SEALING RING CARRIED BY SAID DOOR FRAME, SAID SEALING RING INCLUDING A PORTION SPACED FROM SAID DOOR FRAME AND GENERALLY PARALLEL TO SAID SEALING SURFACE AND A FLANGE ON THE FREE END OF SAID PORTION EXTENDING INWARDLY TO CONTACT SAID SEALING SURFACE,
References Cited (Backward Citations)
US2007318A
Cited
US2085775A
Cited
US2131829A
Cited
US2248187A
Cited
US2236092A
Cited
US2478215A
Cited
US2780590A
Cited
US2800435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |