Patent US2936679A successfully refreshed from Google Patents.
US2936679A
Expired / Lapsed
US
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Method for cutting metal
Assignee: Giddings and Lewis LLC
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Filing: 1956-07-02
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Granted: 1960-05-17
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Expires: 1976-07-02
Abstract
No abstract record available.
Inventors
- 👤 Walter C Thuerwachter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:18
CPC Classifications
B; B23; B23D; B23D13/00; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2222; Y10T407/2238; Y10T407/224; Y10T407/2272; Y10T407/2282; Y10T407/28; Y10T409/00; Y10T409/50; Y10T409/50082; Y10T409/509348; Y10T82/00; Y10T82/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2577043A
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US2321441A
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US2359717A
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US2414231A
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US2649818A
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US2675604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |