Patent US2828658A successfully refreshed from Google Patents.
US2828658A
Expired / Lapsed
US
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Radius turning attachment for turret lathe
Assignee: AT&T Inc
•
Filing: 1954-09-02
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Granted: 1958-04-01
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Expires: 1974-09-02
Abstract
No abstract record available.
Inventors
- 👤 George E Algatt
- 👤 Clarence L Beisinger
- 👤 Ernest A Kromer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:02
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/36; B23B5/40; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5178; Y10T82/00; Y10T82/14; Y10T82/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1435453A
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US1980444A
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US2089078A
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US2163035A
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US2168633A
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US2250161A
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US2423941A
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US2544918A
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US2697364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |