US2075394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of surfacing metallic rolls for rolling metals and apparatus therefor
Assignee: Individual
•
Filing: 1934-12-21
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Granted: 1937-03-30
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Expires: 1954-12-21
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Hazelett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:47
CPC Classifications
C; C21; C21D; C21D7/00; C21D7/02; C21D7/04; C21D7/08; B; B21; B21B; B21B28/00; B21B28/02; B21B28/04; B24; B24B; B24B39/00; B24B39/04; Y; Y10; Y10T; Y10T29/00; Y10T29/47
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) | 1940-03-29 | 1940-09-28 | 1941-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-29 | 1944-09-28 | 1945-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-29 | 1948-09-28 | 1949-03-30 | $7700.00 | Window Closed / Lapsed |