Patent US2914643A successfully refreshed from Google Patents.
US2914643A
Expired / Lapsed
US
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Wire feeder mechanism
Assignee: HY SIL Manufacturing Co
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Filing: 1957-04-29
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Granted: 1959-11-24
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Expires: 1977-04-29
Abstract
No abstract record available.
Inventors
- 👤 Lester E Fields
- 👤 Michael E Willdorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:13
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US14049A
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US317330A
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US832725A
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US2076541A
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US2573171A
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US2664853A
Cited
US2816523A
Cited
US2824213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |