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US2645341A
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Amplifying and triggering means for magnetic hardness testers
Assignee: Motors Liquidation Co
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Filing: 1950-07-12
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Granted: 1953-07-14
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Expires: 1970-07-12
Abstract
No abstract record available.
Inventors
- 👤 Milton J Diamond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:30
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB284307A
Cited
US2045769A
Cited
US2312357A
Cited
US2444751A
Cited
US2504731A
Cited
US2556767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |