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US2843686A
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Push button stations
Assignee: Federal Pacific Electric Co
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Filing: 1953-07-31
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Granted: 1958-07-15
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Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
- 👤 Richard P Ballou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:51
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; H01H13/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1293794A
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US1476911A
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US1734678A
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US2370519A
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US2277555A
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US2295517A
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US2445635A
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US2519216A
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US2713092A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |