US2471840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric protective means
Assignee: General Electric Co
•
Filing: 1945-09-13
•
Granted: 1949-05-31
•
Expires: 1965-09-13
Abstract
No abstract record available.
Inventors
- 👤 Richard E Seely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:31
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/32; G01K5/46; G01K5/465; G01K5/323; H; H02; H02K; H02K11/00; H02K11/20; H02K11/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2260014A
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US1782458A
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US1795149A
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US1947078A
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US2121079A
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US2328406A
Cited
US2369986A
Cited
US2374055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |