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US2518801A
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US
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Assignee: Individual
•
Filing: 1946-11-23
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Granted: 1950-08-15
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Expires: 1966-11-23
Abstract
No abstract record available.
Inventors
- 👤 Nicholas M Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:37
CPC Classifications
B; B27; B27G; B27G5/00; B27G5/02; B27G5/026; B23; B23D; B23D51/00; B23D51/02; B23D51/025; B23D51/026; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7487; Y10T83/754; Y10T83/7573
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |