US2561017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: CHICAGO STEEL FOUNDRY Co
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Filing: 1949-07-08
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Granted: 1951-07-17
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Expires: 1969-07-08
Abstract
No abstract record available.
Inventors
- 👤 Charles K Garrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:22
CPC Classifications
F; F16; F16B; F16B45/00; F16B45/02; F16B45/032; B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/34; B66C1/36; F16B45/027; F16B45/029
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2359557A
Cited
US2462965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |