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US3754948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory compositions
Assignee: MORGANITE CERAMIC FIBRES Ltd
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Filing: 1970-08-19
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Granted: 1973-08-28
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Expires: 1990-08-19
Abstract
Abstract Refractory insulating compositions which comprise mineral wool and ceramic fibre in admixture. Up to 60 percent by weight of the composition preferably can be mineral wool for low temperature applications; at higher temperatures a higher proportion of ceramic fibre is needed. The compositions may be mixed with carriers, binders and/or stiffeners.
Inventors
- 👤 M Ash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:55
CPC Classifications
C; C04; C04B; C04B30/00; C04B30/02; C04B28/00; C04B28/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
The composition of claim 1 comprising up to about 60% by weight of mineral wool.
Claim 2
Dependent Claim
16 words
The composition of claim 1 comprising about 10 to about 30% by weight of ceramic fibre.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |