US2431234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic sonic measuring means
Assignee: Motors Liquidation Co
•
Filing: 1944-12-04
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Granted: 1947-11-18
•
Expires: 1964-12-04
Abstract
No abstract record available.
Inventors
- 👤 Gerald M Rassweiler
- 👤 Wesley S Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:23
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/04; G01B; G01B17/00; G01B17/02; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02854
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1414077A
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US1990085A
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DE521066C
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US2105479A
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US2178252A
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US2277037A
Cited
US2280226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |