Patent US2553584A successfully refreshed from Google Patents.
US2553584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for rapidly accelerating a shaft
Assignee: Individual
•
Filing: 1947-12-29
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Granted: 1951-05-22
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Expires: 1967-12-29
Abstract
No abstract record available.
Inventors
- 👤 Hirsch Joseph
- 👤 Jr John Onisko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:12
CPC Classifications
B; B04; B04B; B04B9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US471694A
Cited
US594462A
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US1044049A
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US1138099A
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US1254951A
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GB159911A
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US1608778A
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US1752862A
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US1962942A
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US2123219A
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US2181741A
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US2265929A
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US2195778A
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US2197179A
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US2342055A
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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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |