US2713183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for melting and casting under air-exclusion
Assignee: Individual
•
Filing: 1950-11-03
•
Granted: 1955-07-19
•
Expires: 1970-11-03
Abstract
No abstract record available.
Inventors
- 👤 Winkler Otto Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:14
CPC Classifications
B; B22; B22C; B22C23/00; B22C9/00; B22C9/12; B22D; B22D18/00; B22D18/06; F; F27; F27B; F27B5/00; F27B5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US262625A
Cited
US1354286A
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US1350972A
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US1511782A
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GB439472A
Cited
FR805977A
Cited
US2371604A
Cited
US2289484A
Cited
US2437685A
Cited
US2640860A
Cited
US2625719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |