Patent US5895944A successfully refreshed from Google Patents.
Patent US1973425A successfully refreshed from Google Patents.
US1973425A
Expired / Lapsed
US
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Rolling mill housing and method of constructing the same
Assignee: United Engineering and Foundry Co
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Filing: 1933-01-13
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Granted: 1934-09-11
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Expires: 1953-01-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Florence C Biggert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:01
CPC Classifications
B; B21; B21B; B21B31/00; B21B31/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
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) | 1937-09-10 | 1938-03-12 | 1938-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-09-10 | 1942-03-12 | 1942-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-09-10 | 1946-03-12 | 1946-09-11 | $7700.00 | Window Closed / Lapsed |