US2580472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work manipulating mechanism
Assignee: Landis Machine Co
•
Filing: 1944-10-21
•
Granted: 1952-01-01
•
Expires: 1964-10-21
Abstract
No abstract record available.
Inventors
- 👤 Nevin B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:03
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1811832A
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US1786608A
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US1947610A
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US2048331A
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US2061085A
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US2224975A
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US2334174A
Cited
US2415997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |