Patent US2490580A successfully refreshed from Google Patents.
US2490580A
Expired / Lapsed
US
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Electrical connection plug
Assignee: Individual
•
Filing: 1946-02-18
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Granted: 1949-12-06
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Expires: 1966-02-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Nicholas E Colla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:21
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/62; H01R13/629; H01R13/633; H01R13/635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323821A
Cited
US1298354A
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US1629243A
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US1775564A
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US1902568A
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US2053386A
Cited
GB508882A
Cited
US2261615A
Cited
US2253668A
Cited
US2447783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |