Patent US2496853A successfully refreshed from Google Patents.
US2496853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating board for electric power networks
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1945-03-30
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Granted: 1950-02-07
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Expires: 1965-03-30
Abstract
No abstract record available.
Inventors
- 👤 Burns George Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:20
CPC Classifications
H; H02; H02B; H02B15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2028626A
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US2010338A
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US1963722A
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GB420629A
Cited
US2094134A
Cited
US2122643A
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US2221078A
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US2280438A
Cited
US2315420A
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US2361412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |