US2929126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making molded aluminum nitride articles
Assignee: Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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Filing: 1956-04-19
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Granted: 1960-03-22
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Expires: 1976-04-19
Abstract
No abstract record available.
Inventors
- 👤 Bollack Raymond
- 👤 Rey Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:54
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/581
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PROCESS OF MAKING MOLDED ALUMINUM NITRIDE ARTICLES, WHICH COMPRISES FORMING A COMPACTED BODY COMPOSED OF A POWDERED MIXTURE OF ALUMINUM NITRIDE, A SMALL AMOUNT OF AT LEAST ONE METAL OF THE GROUP CONSISTING OF ALUMINUM, SILICON, TITANIUM AND VANADIUM, AND ORGANIC FORMING BINDER OF HIGH MOLECULAR WEIGHT AND A NON-AQUEOUS SOLVENT FOR SAID BINDER, HEATING THE COMPACTED BODY IN AN OXIDIZING ATMOSPHERE AT A TEMPERATURE BELOW 500*C. TO ELIMINATE THE ORGANIC FORMING BINDER, MAINTAINING THE BODY IN AN ATMOSPHERE OF AMMONIA TO
Claim 2
Dependent Claim
83 words
A PROCESS OF MAKING MOLDED ALUMINUM NITRIDE ARTICLES, WHICH COMPRISES FORMING A COMPACTED BODY COMPOSED OF A POWDERED MIXTURE OF ALUMINUM NITRIDE, A SMALL AMOUNT OF AT LEAST ONE METAL OF THE GROUP CONSISTING OF ALUMINUM, SILICON, TITANIUM AND VANADIUM, AND ORGANIC FORMING BINDER OF HIGH MOLECULAR WEIGHT AND A NON-AQUEOUS SOLVENT FOR SAID BINDER, HEATING THE COMPACTED BODY IN AN OXIDIZING ATMOSPHERE AT A TEMPERATURE BELOW 500*C. TO ELIMINATE THE ORGANIC FORMING BINDER, MAINTAINING THE BODY IN AN ATMOSPHERE OF AMMONIA TO
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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) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |