US2681571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical moisture indicator
Assignee: General Electric Co
•
Filing: 1949-03-15
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Granted: 1954-06-22
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Expires: 1969-03-15
Abstract
No abstract record available.
Inventors
- 👤 Howard L Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:49
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/4166
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US336773A
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US1395282A
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GB186052A
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GB437821A
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US2047638A
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US2265920A
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US2506478A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |