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US2750897A
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US
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Assignee: —
•
Filing: —
•
Granted: 1956-06-19
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Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:47
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/14; B23Q7/1426; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US500358A
Cited
US1596166A
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US961433A
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US1522332A
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US1622574A
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US1748309A
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US2035355A
Cited
US2361290A
Cited
US2349717A
Cited
US2525327A
Cited
US2488523A
Cited
US2645186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |