Patent US2472570A successfully refreshed from Google Patents.
US2472570A
Expired / Lapsed
US
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Work-supporting adjustable mandrel for band saws
Assignee: Individual
•
Filing: 1944-08-11
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Granted: 1949-06-07
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Expires: 1964-08-11
Abstract
No abstract record available.
Inventors
- 👤 Stanley J A Christie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:54
CPC Classifications
B; B23; B23D; B23D55/00; B23D55/04; B23D55/08; B23D55/082; Y; Y10; Y10T; Y10T83/00; Y10T83/707; Y10T83/7264; Y10T83/727; Y10T83/735; Y10T83/74
Claims Analysis
Total Claims: 0
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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) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |