US2697936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supersonic testing of hot articles
Assignee: Republic Steel Corp
•
Filing: 1948-04-02
•
Granted: 1954-12-28
•
Expires: 1968-04-02
Abstract
No abstract record available.
Inventors
- 👤 Farrow Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:39
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/28; G01N29/04; G01N29/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1158967A
Cited
US1529520A
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GB352040A
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US1962210A
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FR852150A
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US2367866A
Cited
US2431233A
Cited
US2467301A
Cited
US2505515A
Cited
US2448399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |