US2941861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making garnet
Assignee: General Electric Co
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Filing: 1955-03-31
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Granted: 1960-06-21
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Expires: 1975-03-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert H Wentorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:07
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE METHOD OF MAKING GARNET WHICH COMPRISES COMPRESSING A MIXTURE OF HORNBLENDE AND A METALLIC DEHYDRATOR UNDER A PRESSURE OF AT LEAST 27,000 ATMOSPHERES WHILE HEATING SAID MIXTURE TO A TEMPERATURE ABOVE ABOUT 1250*C. AND SUBSEQUENTLY COOLING SAID MIXTURE TO A TEMPERATURE BELOW ABOUT 1250*C., THE SAID METALLIC DEHYDRATOR BEING A METAL REACTIVE WITH WATER AND CAPABLE OF FORMING A STABLE METALLIC OXIDE UNDER THE PRESSURES AND AT THE TEMPERATURES RECITED ABOVE.
Claim 2
Independent Claim
72 words
THE METHOD OF MAKING GARNET WHICH COMPRISES COMPRESSING A MIXTURE OF HORNBLENDE AND A METALLIC DEHYDRATOR UNDER A PRESSURE OF AT LEAST 27,000 ATMOSPHERES WHILE HEATING SAID MIXTURE TO A TEMPERATURE ABOVE ABOUT 1250*C. AND SUBSEQUENTLY COOLING SAID MIXTURE TO A TEMPERATURE BELOW ABOUT 1250*C., THE SAID METALLIC DEHYDRATOR BEING A METAL REACTIVE WITH WATER AND CAPABLE OF FORMING A STABLE METALLIC OXIDE UNDER THE PRESSURES AND AT THE TEMPERATURES RECITED ABOVE.
References Cited (Backward Citations)
US1087705A
Cited
US1422216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |