Patent US2820213A successfully refreshed from Google Patents.
US2820213A
Expired / Lapsed
US
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Pin jack assembly
Assignee: Weston Electric Instrument Corp
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Filing: 1953-12-14
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Granted: 1958-01-14
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Expires: 1973-12-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Sheehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:10
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/40; H01R13/405; H01R13/41; H01R13/46; H01R13/52; H01R13/521; H01R2101/00; H01R24/00; H01R24/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1902236A
Cited
US2136057A
Cited
US2307972A
Cited
US2387630A
Cited
US2558851A
Cited
US2532538A
Cited
US2753534A
Cited
US2701871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |