US2858411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc torch and process
Assignee: Union Carbide Corp
•
Filing: 1955-10-11
•
Granted: 1958-10-28
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Expires: 1975-10-11
Abstract
No abstract record available.
Inventors
- 👤 Robert M Gage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:41
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/16; B05B7/22; B05B7/222; B05B7/226; B23; B23K; B23K10/00; H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US641767A
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US1002721A
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US1638336A
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US2106692A
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US2284351A
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US2215108A
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US2522482A
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US2686860A
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US2768279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |