US3303031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbonaceous ramming paste
Assignee: Union Carbide Corp
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Filing: 1965-12-09
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Granted: 1967-02-07
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Expires: 1985-12-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:54
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63496; C04B35/515; C04B35/52; C04B35/528; C04B35/532; C04B35/66; C04B2111/00; C04B2111/00474; C04B2111/0087; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/42; C04B2235/422; C04B2235/70; C04B2235/96; C04B2235/9669; C04B2235/9676
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A COLD RAMMING PASTE CONSISTING ESSENTIALLY IN WEIGHT PERCENTS, WATER IN AN AMOUNT OF ABOUT 7% TO ABOUT 14%, CARBONACEOUS FLOUR IN AN AMOUNT OF ABOUT 5% TO ABOUT 20%, ABOUT 10% TO ABOUT 15% OF A MILLED PITCH HAVING A MELTING POINT OF FROM BETWEEN ABOUT 150*C. AND ABOUT 175*C., A TEMPORARY BINDER INSOLUBLE IN SAID PITCH AND CAPABLE OF STIFFENING AT A TEMPERATURE SUBSTANTIALLY BELOW THE MELTING POINT OF SAID PITCH, SAID TEMPORARY BINDER BEING CALCIUM LIGNOUSULFONATE CONSISTING OF AN AMOUNT BY WEIGHT FO SAID PASTE OF ABOUT 8% TO ABOUT 15%, PLASTIC CLAY IN AN AMOUNT BY WEIGHT OF SAID PASTE OF ABOUT 12% TO ABOUT 40%, AND CARBONACEOUS PARTICLES IN AN AMOUNT BY WEIGHT OF ABOUT 20% TO ABOUT 50%, SAID CARBONACEOUS FLOUR BEING FINE ENOUGH SO THAT ABOUT 45% OF SAME PASSES THROUGH A 200 TYLER MESH SCREEN AND SAID CARBONACEOUS PARTICLES RANGING IN SIZE FROM ABOUT 1/2 INCH TO ABOUT 1/32 INCH.
Claim 2
Dependent Claim
158 words
A COLD RAMMING PASTE CONSISTING ESSENTIALLY IN WEIGHT PERCENTS, WATER IN AN AMOUNT OF ABOUT 7% TO ABOUT 14%, CARBONACEOUS FLOUR IN AN AMOUNT OF ABOUT 5% TO ABOUT 20%, ABOUT 10% TO ABOUT 15% OF A MILLED PITCH HAVING A MELTING POINT OF FROM BETWEEN ABOUT 150*C. AND ABOUT 175*C., A TEMPORARY BINDER INSOLUBLE IN SAID PITCH AND CAPABLE OF STIFFENING AT A TEMPERATURE SUBSTANTIALLY BELOW THE MELTING POINT OF SAID PITCH, SAID TEMPORARY BINDER BEING CALCIUM LIGNOUSULFONATE CONSISTING OF AN AMOUNT BY WEIGHT FO SAID PASTE OF ABOUT 8% TO ABOUT 15%, PLASTIC CLAY IN AN AMOUNT BY WEIGHT OF SAID PASTE OF ABOUT 12% TO ABOUT 40%, AND CARBONACEOUS PARTICLES IN AN AMOUNT BY WEIGHT OF ABOUT 20% TO ABOUT 50%, SAID CARBONACEOUS FLOUR BEING FINE ENOUGH SO THAT ABOUT 45% OF SAME PASSES THROUGH A 200 TYLER MESH SCREEN AND SAID CARBONACEOUS PARTICLES RANGING IN SIZE FROM ABOUT 1/2 INCH TO ABOUT 1/32 INCH.
References Cited (Backward Citations)
US2890128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |