Patent US3694737A successfully refreshed from Google Patents.
Patent US2662053A successfully refreshed from Google Patents.
US2662053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic seal for coke oven doors
Assignee: Individual
•
Filing: 1950-09-26
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Granted: 1953-12-08
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Expires: 1970-09-26
Abstract
No abstract record available.
Inventors
- 👤 Walter T Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:00
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE COMBINATION WITH A COKE OVEN STRUCTURE HAVING AN OPENING THEREIN, A DOOR FRAME SURROUNDING SAID OPENING, A DOOR FOR CLOSING SAID OPENING BY METAL-TO-METAL CONTACT WITH SAID DOOR FRAME, AND HERMETIC SEALING MEANS SURROUNDING SAID DOOR AND ENGAGEABLE WITH A PORTION OF THE DOOR FRAME ADJOINING SAID METAL-TOMETAL CONTACTING PORTIONS, SAID HERMETIC SEALING MEANS COMPRISING A TUBING OF HIGH TEMPERATURE RUBBER WITH A CONDUIT THERETHROUGH FOR THE PASSAGE OF COOLING FLUID TO IMPROVE THE HEAT STABILITY AND ELASTICITY OF SAID RUBBER.
Claim 2
Dependent Claim
82 words
THE COMBINATION WITH A COKE OVEN STRUCTURE HAVING AN OPENING THEREIN, A DOOR FRAME SURROUNDING SAID OPENING, A DOOR FOR CLOSING SAID OPENING BY METAL-TO-METAL CONTACT WITH SAID DOOR FRAME, AND HERMETIC SEALING MEANS SURROUNDING SAID DOOR AND ENGAGEABLE WITH A PORTION OF THE DOOR FRAME ADJOINING SAID METAL-TOMETAL CONTACTING PORTIONS, SAID HERMETIC SEALING MEANS COMPRISING A TUBING OF HIGH TEMPERATURE RUBBER WITH A CONDUIT THERETHROUGH FOR THE PASSAGE OF COOLING FLUID TO IMPROVE THE HEAT STABILITY AND ELASTICITY OF SAID RUBBER.
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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) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |