US3047411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesia gunning mixes
Assignee: —
•
Filing: —
•
Granted: 1962-07-31
•
Expires: 1979-07-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:23
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C04B35/00; C04B35/66; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3217
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A MAGNESIA REFRACTORY GUNNING COMPOSITION CONSISTING ESSENTIALLY OF DEAD-BURNED MAGNESITE PARTICLES, AND BETWEEN 1% AND 5% OF ALKALI METAL SILICATE HAVING AN ALKALI METAL OXIDE: SILICON DIOXIDE RATIO IN THE RANGE BETWEEN ABOUT 1:1.5 AND 1:395 AND BETWEEN 0.1% AND 1% OF WATER SOLUBLE CELLULOSE CARBOXYETHER HAVING A VISCOSITY AT 25* C. AND AT 1% CONCENTRATION OF BETWEEN 1000 AND 2800 CENTIPOISES.
Claim 2
Dependent Claim
62 words
A MAGNESIA REFRACTORY GUNNING COMPOSITION CONSISTING ESSENTIALLY OF DEAD-BURNED MAGNESITE PARTICLES, AND BETWEEN 1% AND 5% OF ALKALI METAL SILICATE HAVING AN ALKALI METAL OXIDE: SILICON DIOXIDE RATIO IN THE RANGE BETWEEN ABOUT 1:1.5 AND 1:395 AND BETWEEN 0.1% AND 1% OF WATER SOLUBLE CELLULOSE CARBOXYETHER HAVING A VISCOSITY AT 25* C. AND AT 1% CONCENTRATION OF BETWEEN 1000 AND 2800 CENTIPOISES.
References Cited (Backward Citations)
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Cited
US1994377A
Cited
US2316229A
Cited
US2350161A
Cited
US2501336A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |