Patent US2656587A successfully refreshed from Google Patents.
US2656587A
Expired / Lapsed
US
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Machine tool
Assignee: New Britain Machine Co
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Filing: 1948-05-14
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Granted: 1953-10-27
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Expires: 1968-05-14
Abstract
No abstract record available.
Inventors
- 👤 Donald H Montgomery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:25
CPC Classifications
B; B23; B23B; B23B9/00; B23B9/08; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T74/00; Y10T74/14; Y10T74/1418; Y10T74/1424; Y10T74/1441; Y10T74/1453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US673015A
Cited
US1398226A
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US1540899A
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US1918538A
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US2060158A
Cited
US2080157A
Cited
US2060159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |