Patent US3988701A successfully refreshed from Google Patents.
Patent US2461565A successfully refreshed from Google Patents.
US2461565A
Expired / Lapsed
US
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Metal sleeve expanding device with integral wedge and piston rod
Assignee: Individual
•
Filing: 1944-12-07
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Granted: 1949-02-15
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Expires: 1964-12-07
Abstract
No abstract record available.
Inventors
- 👤 Wayne J Morrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:56
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US183241A
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US516180A
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US888239A
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US907396A
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US1022720A
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US1105094A
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US1039948A
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US1389036A
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US1524106A
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US1656149A
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US1689468A
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US1934411A
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US2319216A
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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) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |