Patent US2423665A successfully refreshed from Google Patents.
US2423665A
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US
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Acid resistant alloy
Assignee: Lebanon Steel Foundry
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Filing: 1944-10-05
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Granted: 1947-07-08
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Expires: 1964-10-05
Abstract
No abstract record available.
Inventors
- 👤 William B Sullivan
- 👤 John W Juppenlatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:23
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1528478A
Cited
US2185987A
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US2200208A
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US2172421A
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US2214128A
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US2225440A
Cited
US2241369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |