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US1544572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling-mill housing
Assignee: Siemens Industry Inc
•
Filing: 1922-12-04
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Granted: 1925-07-07
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Expires: 1942-12-04
Abstract
No abstract record available.
Inventors
- 👤 Jerome R George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:53
CPC Classifications
B; B21; B21B; B21B31/00; 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) | 1928-07-06 | 1929-01-05 | 1929-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-07-06 | 1933-01-05 | 1933-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-07-06 | 1937-01-05 | 1937-07-07 | $7700.00 | Window Closed / Lapsed |