Patent US2820209A successfully refreshed from Google Patents.
US2820209A
Expired / Lapsed
US
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Insulated electrical terminal
Assignee: Whitso Inc
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Filing: 1956-02-28
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Granted: 1958-01-14
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Expires: 1976-02-28
Abstract
No abstract record available.
Inventors
- 👤 John B Whitted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:26
CPC Classifications
H; H01; H01R; H01R9/00; H01R9/16; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US813093A
Cited
US2597338A
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US2726280A
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US2700144A
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US2704357A
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US2724736A
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 |