US3262762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature-resistant materials of aluminum, boron, carbon, nitrogen and silicon, and their preparation
Assignee: EIDP Inc
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Filing: 1963-12-27
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Granted: 1966-07-26
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Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Max F Bechtold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:36
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A COMPOSITION CONSISTING ESSENTIALLY OF ALUMINUM, BORON, CARBON, NITROGEN, SILICON, AND OXYGEN IN THE PROPORTIONS BY WEOIGHT BASED ON TOTAL ALUMINUM, BORON, CARBON, NITROGEN, AND SILICON OF 15-73% AL, 3-45% B, 1.5-20% C, 3-26% N, 3-40% SI, AND 0-30% O, THE AMOUNT OF ALUMINUM PRESENT EXEEDING BY AT LEAST 5% BY WEIGHT THE AMOUNT REQUIRED TO REACT COMPLETELY WITH THE NITROGEN AND OXYGEN PRESENT, THE ELEMENTS AL,B, C,N AND SI BEING PRESENT IN AT LEAST ONE OF THE FORMS SELECTED FROM THE CLASS CONSISTING OF ELEMENTAL ALUMINUM, ALUMINUM-BORON AL LOYS, ALUMINUM-SILICON ALLOYS, ALUMINUMN-BORON-SILICON AL LOYS, ALUMINUM NITRIDE, ALUMINUM OXIDE, BORON CARBIDE, BORON OXIDE, SILICON CARBIDE, SILICON DIOXIDE AND SILICON NITRIDE.
Claim 2
Dependent Claim
110 words
A COMPOSITION CONSISTING ESSENTIALLY OF ALUMINUM, BORON, CARBON, NITROGEN, SILICON, AND OXYGEN IN THE PROPORTIONS BY WEOIGHT BASED ON TOTAL ALUMINUM, BORON, CARBON, NITROGEN, AND SILICON OF 15-73% AL, 3-45% B, 1.5-20% C, 3-26% N, 3-40% SI, AND 0-30% O, THE AMOUNT OF ALUMINUM PRESENT EXEEDING BY AT LEAST 5% BY WEIGHT THE AMOUNT REQUIRED TO REACT COMPLETELY WITH THE NITROGEN AND OXYGEN PRESENT, THE ELEMENTS AL,B, C,N AND SI BEING PRESENT IN AT LEAST ONE OF THE FORMS SELECTED FROM THE CLASS CONSISTING OF ELEMENTAL ALUMINUM, ALUMINUM-BORON AL LOYS, ALUMINUM-SILICON ALLOYS, ALUMINUMN-BORON-SILICON AL LOYS, ALUMINUM NITRIDE, ALUMINUM OXIDE, BORON CARBIDE, BORON OXIDE, SILICON CARBIDE, SILICON DIOXIDE AND SILICON NITRIDE.
References Cited (Backward Citations)
US2839413A
Cited
US3078191A
Cited
US3084080A
Cited
US3063832A
Cited
US3079251A
Cited
US3151994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |