US2629646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheetsxsheet i
Assignee: —
•
Filing: —
•
Granted: 1953-02-24
•
Expires: 1970-02-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:50
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/242; G11B7/243; G03; G03B; G03B1/00; G11B7/12; G11B7/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1097211A
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US1725595A
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US1736456A
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US1993884A
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US2232829A
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US2320350A
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US2294622A
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US2304901A
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US2401530A
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US2351399A
Cited
US2391430A
Cited
US2397031A
Cited
US2409597A
Cited
US2483147A
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US2417076A
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US2424622A
Cited
US2478681A
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US2458882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |