Patent US2607024A successfully refreshed from Google Patents.
US2607024A
Expired / Lapsed
US
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Automatic arc starting device
Assignee: Individual
•
Filing: 1951-01-27
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Granted: 1952-08-12
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Expires: 1971-01-27
Abstract
No abstract record available.
Inventors
- 👤 Edward M Marwell
- 👤 Robert L Kenngott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:06
CPC Classifications
H; H05; H05B; H05B31/00; H05B31/02; H05B31/30; H05B31/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |