US3366375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace wall structure
Assignee: BIGELOW LIPTAK CORP
•
Filing: 1964-10-12
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Granted: 1968-01-30
•
Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Robert W Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:24
CPC Classifications
F; F23; F23M; F23M5/00; F23M2700/00; F23M2700/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A TILE BLOCK FOR USE IN A REFRACTORY SUSPENDED CONSTRUCTION, SAID TILE BLOCK HAVING A TOP, A BOTTOM, A FRONT, A REAR, AND SIDE FACES, SAID FRONT FACE DIVERGING AWAY FROM SAID REAR FACE FROM TOP TO BOTTOM WHEREBY SAID BLOCK IS THICKER ADJACENT SAID BOTTOM FACE THAN ADJACENT SAID TOP FACE, ALIGNED SLOTS EXTENDING INTO SAID BLOCK FROM SAID TOP FACE AND FROM SAID BOTTOM FACE, SAID SLOTS BEING PARALLEL TO AND ADJACENT SAID REAR FACE FOR FACILITATING SUSPENSION OF SAID TILE BLOCK IN THE REFRACTORY CONSTRUCTION, THE PORTION OF SAID BOTTOM FACE EXTENDING FROM THE RESPECTIVE SLOT THEREIN TOWARD THE LOWER EDGE OF SAID FRONT FACE BEING COMPRISED OF TWO PARALLEL DOWNWARDLY EXTENDING OFFSET SECTIONS, THE PORTION OF SAID TOP FACE EXTENDING FROM THE SLOT IN SAID TOP FACE TO THE UPPER EDGE OF SAID FRONT FACE BEING DEFINED BY TWO PARALLEL OFFSET SECTIONS EACH PARALLEL TO THE RESPECTIVE SECTION OF SAID BOTTOM FACE.
Claim 2
Dependent Claim
156 words
A TILE BLOCK FOR USE IN A REFRACTORY SUSPENDED CONSTRUCTION, SAID TILE BLOCK HAVING A TOP, A BOTTOM, A FRONT, A REAR, AND SIDE FACES, SAID FRONT FACE DIVERGING AWAY FROM SAID REAR FACE FROM TOP TO BOTTOM WHEREBY SAID BLOCK IS THICKER ADJACENT SAID BOTTOM FACE THAN ADJACENT SAID TOP FACE, ALIGNED SLOTS EXTENDING INTO SAID BLOCK FROM SAID TOP FACE AND FROM SAID BOTTOM FACE, SAID SLOTS BEING PARALLEL TO AND ADJACENT SAID REAR FACE FOR FACILITATING SUSPENSION OF SAID TILE BLOCK IN THE REFRACTORY CONSTRUCTION, THE PORTION OF SAID BOTTOM FACE EXTENDING FROM THE RESPECTIVE SLOT THEREIN TOWARD THE LOWER EDGE OF SAID FRONT FACE BEING COMPRISED OF TWO PARALLEL DOWNWARDLY EXTENDING OFFSET SECTIONS, THE PORTION OF SAID TOP FACE EXTENDING FROM THE SLOT IN SAID TOP FACE TO THE UPPER EDGE OF SAID FRONT FACE BEING DEFINED BY TWO PARALLEL OFFSET SECTIONS EACH PARALLEL TO THE RESPECTIVE SECTION OF SAID BOTTOM FACE.
References Cited (Backward Citations)
US971159A
Cited
US1870721A
Cited
US2075955A
Cited
US2369100A
Cited
US2581989A
Cited
US3060641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |