Patent US3153175A successfully refreshed from Google Patents.
US3153175A
Expired / Lapsed
US
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Two stage system for initiating an electric arc
Assignee: Giannini Scientific Corp
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Filing: 1960-06-29
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Granted: 1964-10-13
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Expires: 1980-06-29
Abstract
No abstract record available.
Inventors
- 👤 John W Winzeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:58
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1962342A
Cited
US2508954A
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US2700120A
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US2738443A
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US2837698A
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US2873409A
Cited
US2953721A
Cited
US2919370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |