US3023115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory material
Assignee: Horizons Inc
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Filing: 1960-02-03
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Granted: 1962-02-27
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Expires: 1980-02-03
Abstract
No abstract record available.
Inventors
- 👤 Wainer Eugene
- 👤 Andrew L Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:07
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/36; C01B33/38; C01B33/42; C01B33/26; C01B33/40; C01B33/46; C04; C04B; C04B35/00; C04B35/622; C04B35/62227; C04B35/62231; C04B35/6224; C04B35/62245; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A METHOD OF FORMING REFRACTORY INORGANIC FIBERS WHICH CONSISTS IN REACTING A GASEOUS SUBOXIDE OF ALUMINUM WITH SILICON MONOXIDE VAPOR IN AN ATMOSPHERE OF HYDROGEN MAINTAINED IN A HEATED REACTION ZONE, WHEREIN THE RELATIVE PROPORTIONS OF ALUMINUM SUBOXIDE AND SILICON MONOXIDE ARE SUCH THAT THE ALUMINUM SUBOXIDE IS PRESENT IN SUBSTANTIAL EXCESS OF TWO MOLES FOR EACH THREE MOLES OF SILICON MONOXIDE AND RECOVERING THE SILICA-CONTAINING ALUMINA-BASE FIBERS RESULTING FROM SAID REACTION.
Claim 2
Independent Claim
72 words
A METHOD OF FORMING REFRACTORY INORGANIC FIBERS WHICH CONSISTS IN REACTING A GASEOUS SUBOXIDE OF ALUMINUM WITH SILICON MONOXIDE VAPOR IN AN ATMOSPHERE OF HYDROGEN MAINTAINED IN A HEATED REACTION ZONE, WHEREIN THE RELATIVE PROPORTIONS OF ALUMINUM SUBOXIDE AND SILICON MONOXIDE ARE SUCH THAT THE ALUMINUM SUBOXIDE IS PRESENT IN SUBSTANTIAL EXCESS OF TWO MOLES FOR EACH THREE MOLES OF SILICON MONOXIDE AND RECOVERING THE SILICA-CONTAINING ALUMINA-BASE FIBERS RESULTING FROM SAID REACTION.
References Cited (Backward Citations)
US2899323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |