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US2691747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit reclosing control
Assignee: Individual
•
Filing: 1951-03-05
•
Granted: 1954-10-12
•
Expires: 1971-03-05
Abstract
No abstract record available.
Inventors
- 👤 Herman L Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:40
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/02; H02H3/06; H02H3/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1483438A
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US1796817A
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US1872560A
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US1985051A
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US1883613A
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US2149080A
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US2230216A
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US2259965A
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US2424298A
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US2463876A
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US2552909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |