Patent US3399322A successfully refreshed from Google Patents.
US3399322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon rod assemblies for arc gouging of steel
Assignee: Ibigawa Electric Industry Co Ltd
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Filing: 1965-10-21
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Granted: 1968-08-27
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Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Ambe Michio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:19
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0205; B23K9/00; B23K9/12; B23K9/121; F; F16; F16B; F16B2200/00; F16B2200/10; Y; Y10; Y10S; Y10S403/00; Y10S403/05; Y10T; Y10T403/00; Y10T403/70; Y10T403/7016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2120243A
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US2298686A
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US2412081A
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US2599179A
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US2657326A
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US3030544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |