US2516140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic structure
Assignee: Individual
•
Filing: 1944-12-14
•
Granted: 1950-07-25
•
Expires: 1964-12-14
Abstract
No abstract record available.
Inventors
- 👤 Nahman Gustave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:24
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US682520A
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US1513972A
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US1909491A
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US1837142A
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US1962431A
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US2053176A
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GB482771A
Cited
US2142066A
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US2359102A
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US2348003A
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US2355137A
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US2382857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |