Patent US1872518A successfully refreshed from Google Patents.
Patent US1772248A successfully refreshed from Google Patents.
US1772248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: Individual
•
Filing: 1927-08-03
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Granted: 1930-08-05
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Expires: 1947-08-03
Abstract
No abstract record available.
Inventors
- 👤 Charles J Gibbons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:19
CPC Classifications
B; B21; B21B; B21B31/00; B21B31/16; B21B31/18; B21B31/07; B21B2031/072
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) | 1933-08-04 | 1934-02-03 | 1934-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-08-04 | 1938-02-03 | 1938-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-08-04 | 1942-02-03 | 1942-08-05 | $7700.00 | Window Closed / Lapsed |