US2465545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for metal melting
Assignee: Alcoa Corp
•
Filing: 1946-05-10
•
Granted: 1949-03-29
•
Expires: 1966-05-10
Abstract
No abstract record available.
Inventors
- 👤 Marsh Kirtland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:47
CPC Classifications
F; F27; F27B; F27B3/00; Y; Y10; Y10S; Y10S266/00; Y10S266/90; Y10S266/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1513875A
Cited
US1797276A
Cited
US2072650A
Cited
US2089742A
Cited
US2331857A
Cited
US2402498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |