Patent US2643419A successfully refreshed from Google Patents.
US2643419A
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US
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Elimination of faller bar creep in pin drafters
Assignee: Warner and Swasey Co
•
Filing: 1948-07-30
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Granted: 1953-06-30
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Expires: 1968-07-30
Abstract
No abstract record available.
Inventors
- 👤 James R Longstreet
- 👤 Jacques Raynaldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:24
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/02; D01H5/04; D01H5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US722984A
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FR323735A
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US1497306A
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US1565008A
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US1598460A
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US1763926A
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Cited
GB413618A
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US2098781A
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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) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |