US3239898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high-quality ingots
Assignee: Huntington Alloys Corp
•
Filing: 1963-08-05
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Granted: 1966-03-15
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Expires: 1983-08-05
Abstract
No abstract record available.
Inventors
- 👤 Philip G Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:28
CPC Classifications
B; B22; B22D; B22D23/00; B22D23/006; C; C22; C22C; C22C1/00; C22C1/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
38 words
A PROCESS FOR PRODUCING AN INGOT OF METAL CHARACTERIZED BY A MELTING POINT OF AT LEAST 1300*C. WHICH COMPRISES POURING SAID METAL FOR INGOT THROUGH A BODY OF LOOSE GRANULAR VERMICULITE WHICH IS AT LEAST FOUR INCHES DEEP.
References Cited (Backward Citations)
US2462255A
Cited
US2462256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |