US2680281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turret lathe
Assignee: New Britain Machine Co
•
Filing: 1950-11-17
•
Granted: 1954-06-08
•
Expires: 1970-11-17
Abstract
No abstract record available.
Inventors
- 👤 Donald H Montgomery
- 👤 Charles A Pethybridge
- 👤 George H Lange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:36
CPC Classifications
B; B23; B23B; B23B3/00; B23B3/16; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5178; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19451; Y10T74/1946; Y10T82/00; Y10T82/25; Y10T82/2531; Y10T82/2541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US269790A
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US574162A
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US739501A
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US1703986A
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US2008010A
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US1896052A
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US2270310A
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US2321393A
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US2560686A
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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) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |