US3116157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory ramming mix
Assignee: Union Carbide Corp
•
Filing: 1960-12-23
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Granted: 1963-12-31
•
Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 John C Burbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:41
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/6303; C04B35/6316; C04B35/515; C04B35/58; C04B35/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A NOVEL REFRACTORY RAMMING MIXTURE COMPRISING 85 TO 95 WEIGHT PERCENT OF SILICON NITRIDE AND 5 TO 15 WEIGHT PERCENT OF A SOLUTION OF AT LEAST ONE SILOXANE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 1000.
Claim 2
Dependent Claim
37 words
A NOVEL REFRACTORY RAMMING MIXTURE COMPRISING 85 TO 95 WEIGHT PERCENT OF SILICON NITRIDE AND 5 TO 15 WEIGHT PERCENT OF A SOLUTION OF AT LEAST ONE SILOXANE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 1000.
References Cited (Backward Citations)
US2641044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |