Patent US2963570A successfully refreshed from Google Patents.
US2963570A
Expired / Lapsed
US
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Arc welding method and apparatus
Assignee: Chemetron Corp
•
Filing: 1956-01-16
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Granted: 1960-12-06
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Expires: 1976-01-16
Abstract
No abstract record available.
Inventors
- 👤 Perry J Rieppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:16
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/173
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1106347A
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US1161366A
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US1468937A
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GB279886A
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US2473601A
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US2522482A
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US2504867A
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US2621278A
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US2686860A
Cited
US2859329A
Cited
US2870320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |