Patent US2080910A successfully refreshed from Google Patents.
Patent US3299390A successfully refreshed from Google Patents.
US3299390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector with grounding terminal
Assignee: Individual
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Filing: 1964-10-06
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Granted: 1967-01-17
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Expires: 1984-10-06
Abstract
No abstract record available.
Inventors
- 👤 Eckelkamp Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:10
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/648; H01R13/652
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
AN ELECTRIC PLUG HAVING AN OUTWARDLY EXTENDING MAGNETIC GROUND CONNECTOR PLATE AND TWO OUTWARDLY EXTENDING PRONGS, SAID PLUG PROVIDING AN ELECTRICAL COUPLING MEANS BETWEEN (A) A THREE WIRE SYSTEM HAVING TWO CURRENT CARRYING WIRES AND A GROUND AND (B) A WALL RECEPTACLE ADAPTED TO RECEIVE ONLY TWO-PRONG MALE PLUGS; SAID PLUG COMPRISING A PLUG HOUSING HAVING (I) MEANS FOR ELECTRICALLY CONNECTING SAID TWO WIRES AND SAID GROUND TO THREE INTERNAL CONNECTIONS IN SAID PLUG HOUSING, (II) MEANS FOR CONNECTING EACH OF SAID OUTWARDLY EXTENDING PRONGS TO A CURRENT CARRYING CONNECTION IN SAID HOUSING, AND (III) MEANS IN SAID HOUSING FOR MAKING ELECTRICAL CONTACT BETWEEN THE GROUND CONNECTION IN SAID HOUSING AND SAID OUTWARDLY EXTENDING MAGNETIC CONNECTOR PLATE.
Claim 2
Dependent Claim
117 words
AN ELECTRIC PLUG HAVING AN OUTWARDLY EXTENDING MAGNETIC GROUND CONNECTOR PLATE AND TWO OUTWARDLY EXTENDING PRONGS, SAID PLUG PROVIDING AN ELECTRICAL COUPLING MEANS BETWEEN (A) A THREE WIRE SYSTEM HAVING TWO CURRENT CARRYING WIRES AND A GROUND AND (B) A WALL RECEPTACLE ADAPTED TO RECEIVE ONLY TWO-PRONG MALE PLUGS; SAID PLUG COMPRISING A PLUG HOUSING HAVING (I) MEANS FOR ELECTRICALLY CONNECTING SAID TWO WIRES AND SAID GROUND TO THREE INTERNAL CONNECTIONS IN SAID PLUG HOUSING, (II) MEANS FOR CONNECTING EACH OF SAID OUTWARDLY EXTENDING PRONGS TO A CURRENT CARRYING CONNECTION IN SAID HOUSING, AND (III) MEANS IN SAID HOUSING FOR MAKING ELECTRICAL CONTACT BETWEEN THE GROUND CONNECTION IN SAID HOUSING AND SAID OUTWARDLY EXTENDING MAGNETIC CONNECTOR PLATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |