Patent US2284254A successfully refreshed from Google Patents.
US2284254A
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Method of treating composite strip products
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1938-07-20
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Granted: 1942-05-26
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Expires: 1958-07-20
Abstract
No abstract record available.
Inventors
- 👤 Batcheller Clements
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:41
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C53/06; B29C59/00; B29C59/02; B29C59/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1082; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/4979; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24314
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) | 1945-05-25 | 1945-11-24 | 1946-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-05-25 | 1949-11-24 | 1950-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-05-25 | 1953-11-24 | 1954-05-26 | $7700.00 | Window Closed / Lapsed |