US3360388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory
Assignee: —
•
Filing: —
•
Granted: 1967-12-26
•
Expires: 1984-12-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:45
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/44; C04B22/00; C04B22/0013; C04B35/66; F; F27; F27D; F27D1/00; F27D1/0003; F27D1/0006; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3201; C04B2235/3205; C04B2235/3206; C04B2235/3208; C04B2235/3217; C04B2235/327; C04B2235/3272; C04B2235/34; C04B2235/3409; C04B2235/3418
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A REFRACTORY COMPOSITION ADAPTED FOR USE AS A SHOVEL MIX CONSISTING ESSENTIALLY OF: FROM 0.5% TO 6% BY WEIGHT SODIUM SILICATE; FROM 0.25% TO 3% BY WEIGHT CALCULATED AS B2O3, OF SODIUM TETRABORATE DECAHYDRATE; FROM 10% TO 50% BY WEIGHT FINELY DIVIDED MAGNESIA; FROM 0 TO 15% BY WEIGHT OF A CERAMIC BONDING MATERIAL; THE BALANCE OF THE COMPOSITION BEING REFRACTORY GRAIN.
Claim 2
Dependent Claim
62 words
A REFRACTORY COMPOSITION ADAPTED FOR USE AS A SHOVEL MIX CONSISTING ESSENTIALLY OF: FROM 0.5% TO 6% BY WEIGHT SODIUM SILICATE; FROM 0.25% TO 3% BY WEIGHT CALCULATED AS B2O3, OF SODIUM TETRABORATE DECAHYDRATE; FROM 10% TO 50% BY WEIGHT FINELY DIVIDED MAGNESIA; FROM 0 TO 15% BY WEIGHT OF A CERAMIC BONDING MATERIAL; THE BALANCE OF THE COMPOSITION BEING REFRACTORY GRAIN.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |