Patent US3393393A successfully refreshed from Google Patents.
US3393393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line tap apparatus
Assignee: Individual
•
Filing: 1966-09-13
•
Granted: 1968-07-16
•
Expires: 1986-09-13
Abstract
No abstract record available.
Inventors
- 👤 Oliver M Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:02
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/38; H01R4/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1153580A
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US1999045A
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US1960153A
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US2039167A
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US1993968A
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US2033199A
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US2348755A
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US2327048A
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US2851670A
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US3154363A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |