US2764109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for combustion of metals
Assignee: Individual
•
Filing: 1953-11-30
•
Granted: 1956-09-25
•
Expires: 1973-11-30
Abstract
No abstract record available.
Inventors
- 👤 Aristid V Grosse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:33
CPC Classifications
F; F23; F23B; F23B7/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
155 words
THE METHOD OF PRODUCING HEAT IN A CHAMBER OF REFRACTORY MATERIAL HAVING A MELTING POINT OF AT LEAST 1500* C. BY PRODUCING IN SAID CHAMBER MOLTEN OXIDE OF A METAL OF THE GROUP CONSISTING OF ALUMINUM, MAGNESIUM AND ZIRCONIUM AT A TEMPERATURE IN EXCESS OF THE MELTING POINT OF THE REFRACTORY MATERIAL WHICH COMPRISES INTRODUCING A SUPPLY OF A METAL OF SAID GROUP INTO THE CONFINED CHAMBER AT A RATE OF AT LEAST 12 GRAMS OF SAID METAL PER MINUTE PER LITER OF SAID CHAMBER, INTRODUCING OXYGEN INTO THE CONFINED CHAMBER OF A RATE OF AT LEAST 3 GRAMS OF OXYGEN PER MINUTE PER LITER OF SAID CHAMBER, CONTACTING AND MIXING IN SAID CHAMBER AT LEAST 12 GRAMS OF METAL PER MINUTE PER LITER WITH AT LEAST 3 GRAMS PER MINUTE PER LITER OF SAID OXYGEN, IGNITING SAID MIXTURE OF OXYGEN AND METAL, BURNING SAID METAL IN SAID OXYGEN AT A RATE OF AT LEAST
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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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |