Patent US2722698A successfully refreshed from Google Patents.
US2722698A
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US
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Apparatus for making lock nuts
Assignee: SECURITY MACHINE PRODUCTS Co
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Filing: 1951-12-11
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Granted: 1955-11-08
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Expires: 1971-12-11
Abstract
No abstract record available.
Inventors
- 👤 Edward A Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:06
CPC Classifications
B; B23; B23G; B23G9/00; B23G9/005; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53687; Y10T408/00; Y10T408/36; Y10T408/38; Y10T408/3806; Y10T408/3809; Y10T408/381; Y10T408/55; Y10T408/561; Y10T408/5617
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US518803A
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US1087024A
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US1762192A
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US2038933A
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US2167673A
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US2371440A
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US2391712A
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US2418070A
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US2388467A
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US2464411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |