Patent US1729410A successfully refreshed from Google Patents.
US1729410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-rolling mill
Assignee: Laclede Steel Co
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Filing: 1928-07-05
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Granted: 1929-09-24
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Expires: 1948-07-05
Abstract
No abstract record available.
Inventors
- 👤 Young Lafayette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:01
CPC Classifications
B; B21; B21B; B21B13/00; B21B13/14; B21B2203/00; B21B2203/02; B21B2203/36; B21B31/00; B21B31/07; B21B31/16; B21B31/20; B21B31/22; B21B31/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-09-23 | 1933-03-25 | 1933-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-23 | 1937-03-25 | 1937-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-23 | 1941-03-25 | 1941-09-24 | $7700.00 | Window Closed / Lapsed |