Patent US2556786A successfully refreshed from Google Patents.
US2556786A
Expired / Lapsed
US
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Method of thermochemically severing tubular metal members
Assignee: Airco Inc
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Filing: 1947-05-24
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Granted: 1951-06-12
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Expires: 1967-05-24
Abstract
No abstract record available.
Inventors
- 👤 James L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:16
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1701388A
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US1723107A
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US1775311A
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US2054375A
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FR701786A
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US1888385A
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US2221788A
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US2252320A
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US2266208A
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US2347245A
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US2284711A
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US2417412A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |