US3090103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat resistant fibrous products containing ceramic fibers and method of making the same
Assignee: Unifrax I LLC
•
Filing: 1957-10-24
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Granted: 1963-05-21
•
Expires: 1977-10-24
Abstract
No abstract record available.
Inventors
- 👤 William P Crawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:55
CPC Classifications
C; C04; C04B; C04B30/00; C04B30/02; D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4382; D04H1/43835; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S57/00; Y10S57/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A BLENDED, FIBROUS PRODUCT CHARACTERIZED BY A HIGH DEGREE OF STRENGTH RETENTION AT TEMPERATURES BETWEEN 1000* F. AND 2000* F. AND CONSISTING ESSENTIALLY OF AN INTIMATE CARDED MIXTURE OF STAPLE, INORGANIC, SILICENOUS,
Claim 2
Dependent Claim
32 words
A BLENDED, FIBROUS PRODUCT CHARACTERIZED BY A HIGH DEGREE OF STRENGTH RETENTION AT TEMPERATURES BETWEEN 1000* F. AND 2000* F. AND CONSISTING ESSENTIALLY OF AN INTIMATE CARDED MIXTURE OF STAPLE, INORGANIC, SILICENOUS,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |