Patent US2638818A successfully refreshed from Google Patents.
US2638818A
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US
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Wire finishing method and apparatus
Assignee: Armco Inc
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Filing: 1949-07-25
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Granted: 1953-05-19
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Expires: 1969-07-25
Abstract
No abstract record available.
Inventors
- 👤 Stevens George John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 00:33
CPC Classifications
B; B23; B23D; B23D79/00; B23D79/12; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/501476; Y10T409/50164; Y10T409/50328; Y10T409/503608
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE166403C
Cited
US166337A
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US1790731A
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US2030562A
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US2233928A
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US2300967A
Cited
US2530219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |