Patent US2448509A successfully refreshed from Google Patents.
US2448509A
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Electrical connector
Assignee: Unisys Corp
•
Filing: 1943-05-14
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Granted: 1948-09-07
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Expires: 1963-05-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Antony
- 👤 Mannheimer David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:47
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/53; H01J; H01J29/00; H01J29/92; H01J29/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US556362A
Cited
US1010592A
Cited
FR641843A
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US1871397A
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US2059008A
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US1997081A
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US1940666A
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US1965151A
Cited
GB411849A
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US2032038A
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US2241419A
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US2275762A
Cited
US2249977A
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US2272379A
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US2253223A
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US2330948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |