US2750818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire feed mechanism and control of same
Assignee: Waterbury Farrel Foundry and Machine Co
•
Filing: 1951-02-16
•
Granted: 1956-06-19
•
Expires: 1971-02-16
Abstract
No abstract record available.
Inventors
- 👤 Erwin B Byam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:18
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/28; B21D43/285; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1565; Y10T74/1566; Y10T74/1568
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563584A
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US663396A
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US944346A
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US1550996A
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GB296243A
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US2159137A
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US2301099A
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US2534034A
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CH227666A
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US2442868A
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US2423006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |