Patent US2869228A successfully refreshed from Google Patents.
US2869228A
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Method of making a compositte structure
Assignee: Wheeling Steel Corp
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Filing: 1955-09-06
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Granted: 1959-01-20
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Expires: 1975-09-06
Abstract
No abstract record available.
Inventors
- 👤 George E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:39
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/0004; B65D19/0053; B65D19/0055; B65D19/0067; B65D19/0071; B65D19/0075; B21; B21D; B21D53/00; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00024; B65D2519/00049; B65D2519/00059; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00283; B65D2519/00293; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00338; B65D2519/00398; B65D2519/00432; B65D2519/00437; B65D2519/00547; B65D2519/00552; B65D2519/00557; B65D2519/00562; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861; Y10T29/49904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1360639A
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US1707655A
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US2034183A
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US2285903A
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US2114150A
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US2422883A
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US2699912A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |