Patent US2027864A successfully refreshed from Google Patents.
US2027864A
Expired / Lapsed
US
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Phase-sequence indicator
Assignee: General Electric Co
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Filing: 1934-10-25
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Granted: 1936-01-14
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Expires: 1954-10-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Hand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:47
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/18; G01R19/00; G01R19/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-01-13 | 1939-07-15 | 1940-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-13 | 1943-07-15 | 1944-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-13 | 1947-07-15 | 1948-01-14 | $7700.00 | Window Closed / Lapsed |