Patent US5957885A successfully refreshed from Google Patents.
US2448339A
Expired / Lapsed
US
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Electrical plug
Assignee: Individual
•
Filing: 1944-01-07
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Granted: 1948-08-31
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Expires: 1964-01-07
Abstract
No abstract record available.
Inventors
- 👤 Alexander M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:06
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/44; H01R13/443; H01R27/00; H01R27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1728549A
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US1734073A
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US1804474A
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US1979958A
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US1917909A
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US2027447A
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US2159939A
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US2141790A
Cited
US2186751A
Cited
CH208056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |