Patent US2925570A successfully refreshed from Google Patents.
US2925570A
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Assignee: HOWARD EUGENE STROCK
•
Filing: 1954-08-12
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Granted: 1960-02-16
•
Expires: 1974-08-12
Abstract
No abstract record available.
Inventors
- 👤 Strock Howard Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:37
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/20; H01F38/22; H01F38/28; H01F38/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2559141A
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US2464029A
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US2572590A
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US2618689A
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US2738466A
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US2701392A
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US2795009A
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US2700185A
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US2731607A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |