Patent US4894936A successfully refreshed from Google Patents.
US2867115A
Expired / Lapsed
US
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Means for extending range of transducers
Assignee: Statham Instruments Inc
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Filing: 1953-05-11
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Granted: 1959-01-06
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Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Louis D Statham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:42
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0041; G01L9/0051; G01L9/006; G01L9/0061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US16458A
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US1406616A
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US1528627A
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FR573453A
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US2220651A
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US2260837A
Cited
US2319011A
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US2573286A
Cited
FR925062A
Cited
US2600271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |