US2715698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power control circuit particularly for electric resistance welders
Assignee: TAYLOR WINTIELD CORP
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Filing: 1951-08-15
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Granted: 1955-08-16
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Expires: 1971-08-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Riley
- 👤 William S Dustman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:39
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2547228A
Cited
US2482892A
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US2533318A
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US2508145A
Cited
US2540514A
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US2577411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |