Patent US2190490A successfully refreshed from Google Patents.
US2190490A
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Structural material
Assignee: American Rolling Mill Co
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Filing: 1937-04-22
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Granted: 1940-02-13
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Expires: 1957-04-22
Abstract
No abstract record available.
Inventors
- 👤 Sendzimir Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:53
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/32; E04C2/322; E04C2/34; E04C2/3405; E04C2002/3444; E04C2002/3455; E04C2002/3472; E04C2002/3494; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T428/00; Y10T428/12; Y10T428/1234; Y10T428/1241; Y10T428/12417
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) | 1943-02-12 | 1943-08-14 | 1944-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-12 | 1947-08-14 | 1948-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-12 | 1951-08-14 | 1952-02-13 | $7700.00 | Window Closed / Lapsed |