US3629094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coke oven door
Assignee: Raymond Kaiser Engineers Inc
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Filing: 1969-06-30
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Granted: 1971-12-21
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Expires: 1989-06-30
Abstract
Abstract A coke oven door comprises a flexible door frame and panel that supports the knife edge sealing ring and a pair of latch yoke frames. The latch yoke frames are pin connected to the door frame and the sealing ring is clamped to the door frame.
Inventors
- 👤 Leo Silverblatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:48
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
The structure of claim 1 wherein: a. said means includes a plurality of adjustable fasteners coacting with said frame and said band.
Claim 2
Dependent Claim
29 words
The structure of claim 1 wherein: a. said protrusions are rodlike members fixed to said band and arranged in spaced apart relation with said means disposed between said members.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |