Patent US2584456A successfully refreshed from Google Patents.
US2584456A
Expired / Lapsed
US
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Machine tool
Assignee: Individual
•
Filing: 1948-02-11
•
Granted: 1952-02-05
•
Expires: 1968-02-11
Abstract
No abstract record available.
Inventors
- 👤 Marion W Humphreys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:01
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/16; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/172; Y10T408/44; Y10T408/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1195145A
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US1700668A
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US885914A
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US1057132A
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US1112198A
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US1219537A
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US1588856A
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US2368359A
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US2360059A
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US2414515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |