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Patent US2991441A successfully refreshed from Google Patents.
US2991441A
Expired / Lapsed
US
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Watertight electrical connector
Assignee: Individual
•
Filing: 1959-02-18
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Granted: 1961-07-04
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Expires: 1979-02-18
Abstract
No abstract record available.
Inventors
- 👤 Francis E Butler
- 👤 Wolf Sylvan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:29
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/523
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US402007A
Cited
US1766593A
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US2414498A
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US2536173A
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US2605315A
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US2629922A
Cited
US2813922A
Cited
US2761111A
Cited
US2869099A
Cited
US2945203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |