US2941143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage responsive apparatus
Assignee: General Electric Co
•
Filing: 1957-05-15
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Granted: 1960-06-14
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Expires: 1977-05-15
Abstract
No abstract record available.
Inventors
- 👤 Tseng W Liao
- 👤 Alfred F Boice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:34
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/12; G01R31/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |