US2567088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory material and method of making
Assignee: National Foundry Sand Co
•
Filing: 1948-11-03
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Granted: 1951-09-04
•
Expires: 1968-11-03
Abstract
No abstract record available.
Inventors
- 👤 Chester C Teasel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:33
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PLASTIC REFRACTORY LINING FOR A FURNACE COMPRISING, IN APPROXIMATELY THE FOLLOWING PROPORTIONS BY WEIGHT, ZIRCON SAND 10%. GROUND ZIRCON 662/3%, CRUSHED SILICA ROCK 20%, 12/3% OF A SELECTED BINDER FROM THE GROUP CONSISTING OF PLASTIC FIRE CLAY, BALL CLAY, AND KAOLIN, AND BENTONITE 12/3%, TOGETHER WITH SODIUM SILICATE AND WATER IN AN AMOUNT ACCORDING TO THE FLUIDITY DESIRED.
Claim 2
Dependent Claim
59 words
A PLASTIC REFRACTORY LINING FOR A FURNACE COMPRISING, IN APPROXIMATELY THE FOLLOWING PROPORTIONS BY WEIGHT, ZIRCON SAND 10%. GROUND ZIRCON 662/3%, CRUSHED SILICA ROCK 20%, 12/3% OF A SELECTED BINDER FROM THE GROUP CONSISTING OF PLASTIC FIRE CLAY, BALL CLAY, AND KAOLIN, AND BENTONITE 12/3%, TOGETHER WITH SODIUM SILICATE AND WATER IN AN AMOUNT ACCORDING TO THE FLUIDITY DESIRED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |