US2691111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Readily accessible temperature controlled piezoelectric device test oven
Assignee: Selectronics Inc
•
Filing: 1949-08-05
•
Granted: 1954-10-05
•
Expires: 1969-08-05
Abstract
No abstract record available.
Inventors
- 👤 Edward L Minnich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:39
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2636684A
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US763062A
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US2178225A
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US2132334A
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US2455520A
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US2438345A
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US2470134A
Cited
US2607818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |