US2476049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting magnet
Assignee: Electric Controller and Manufacturing Co LLC
•
Filing: 1945-07-13
•
Granted: 1949-07-12
•
Expires: 1965-07-13
Abstract
No abstract record available.
Inventors
- 👤 John D Leitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:17
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/20; H01F7/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US844578A
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US1334504A
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US1015728A
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US1326366A
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US1455199A
Cited
GB185265A
Cited
US1675419A
Cited
US1816680A
Cited
US1818976A
Cited
US2095499A
Cited
US2116318A
Cited
US2379664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |