Patent US2735575A successfully refreshed from Google Patents.
Patent US2870032A successfully refreshed from Google Patents.
US2870032A
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Refractory gunning composition and method of producing the same
Assignee: S Obermayer Co
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Filing: 1956-06-11
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Granted: 1959-01-20
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Expires: 1976-06-11
Abstract
No abstract record available.
Inventors
- 👤 Louis J Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:37
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/66; C04B2111/00; C04B2111/00034; C04B2111/00146; C04B2111/00155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A REFRACTORY COMPOSITION CONSISTING ESSENTIALLY OF BETWEEN ABOUT 40% AND ABOUT 78% BY WEIGHT OF COARSE GRAINS OF REFRACTORY CLAY, BETWEEN ABOUT 10% AND ABOUT 35% BY WEIGHT OF FINE GRAINS OF REFRACTORY CLAY, BETWEEN ABOUT 15% AND ABOUT 35% BY WEIGHT OF BOND CLAY, UP TO ABOUT 0.5% BY WEIGHT OF WETTING AGENT, AND A SMALL AMOUNT OF WATER, AND WHEREIN EACH COARSE GRAIN HAS A PRIMARY COATING OF MOISTENED BOND CLAY AND AN EXTERIOR COATING OF DRY BOND CLAY AND SAID FINE GRAINS.
Claim 2
Dependent Claim
85 words
A REFRACTORY COMPOSITION CONSISTING ESSENTIALLY OF BETWEEN ABOUT 40% AND ABOUT 78% BY WEIGHT OF COARSE GRAINS OF REFRACTORY CLAY, BETWEEN ABOUT 10% AND ABOUT 35% BY WEIGHT OF FINE GRAINS OF REFRACTORY CLAY, BETWEEN ABOUT 15% AND ABOUT 35% BY WEIGHT OF BOND CLAY, UP TO ABOUT 0.5% BY WEIGHT OF WETTING AGENT, AND A SMALL AMOUNT OF WATER, AND WHEREIN EACH COARSE GRAIN HAS A PRIMARY COATING OF MOISTENED BOND CLAY AND AN EXTERIOR COATING OF DRY BOND CLAY AND SAID FINE GRAINS.
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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |