US2942941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A method for the preparation of monocrystalline aluminum titanate
Assignee: NL Industries Inc
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Filing: 1955-11-23
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Granted: 1960-06-28
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Expires: 1975-11-23
Abstract
No abstract record available.
Inventors
- 👤 Merker Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:12
CPC Classifications
C; C30; C30B; C30B11/00; C30B11/04; C30B11/08; C30B11/10; Y; Y10; Y10S; Y10S117/00; Y10S117/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
METHOD FOR THE PREPARATION OF MONOCRYSTALLINE ALUMINUM TITANATE WHICH COMPRISES INTRODUCING POWDERED ALUMINUIM TITANATE FEED MATERIAL INTO A STREAM OF OXYGEN, SUROUNDING SAID STREAM OF OXYGEN WITH A STREAM OF HYDROGEN, SURROUNDING SAID STREAM OF HYDROGEN WITH A STREAM OF OXYGEN AND FORMING A FLAME HAVING A CENTRAL OXYGEN CONE, AND A SURROUNDING OXIDIZING ATMOSPHERE AROUND SAID FLAME MELTING SAID MIXTURE IN SAID FLAME AND CRYSTALLIZING INTO THE FORM OF A BOULE, THE MOLTEN MATERIAL ADJACENT THE END OF THE OXYGEN CONE.
Claim 2
Dependent Claim
82 words
METHOD FOR THE PREPARATION OF MONOCRYSTALLINE ALUMINUM TITANATE WHICH COMPRISES INTRODUCING POWDERED ALUMINUIM TITANATE FEED MATERIAL INTO A STREAM OF OXYGEN, SUROUNDING SAID STREAM OF OXYGEN WITH A STREAM OF HYDROGEN, SURROUNDING SAID STREAM OF HYDROGEN WITH A STREAM OF OXYGEN AND FORMING A FLAME HAVING A CENTRAL OXYGEN CONE, AND A SURROUNDING OXIDIZING ATMOSPHERE AROUND SAID FLAME MELTING SAID MIXTURE IN SAID FLAME AND CRYSTALLIZING INTO THE FORM OF A BOULE, THE MOLTEN MATERIAL ADJACENT THE END OF THE OXYGEN CONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |