US3401370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separable connector for underground system
Assignee: McGraw Edison Co
•
Filing: 1966-08-10
•
Granted: 1968-09-10
•
Expires: 1986-08-10
Abstract
No abstract record available.
Inventors
- 👤 William J Weinfurt
- 👤 Davis M Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:35
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/53
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL89614C
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FR588665A
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US1871397A
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US2316470A
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US2727945A
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US2967901A
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US3002072A
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US3141061A
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US2995718A
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US3307137A
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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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |