US2624377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hook forming tool for helical springs
Assignee: Individual
•
Filing: 1947-11-06
•
Granted: 1953-01-06
•
Expires: 1967-11-06
Abstract
No abstract record available.
Inventors
- 👤 Smith Joseph Leigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:03
CPC Classifications
B; B25; B25B; B25B7/00; B25B7/02; B21; B21F; B21F35/00; C; C10; C10G; C10G73/00; C10G73/02; C10G73/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1311187A
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US906418A
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US971238A
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US1627600A
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GB238776A
Cited
US1869501A
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US2062326A
Cited
US2188705A
Cited
US2268824A
Cited
US2334505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |