Patent US2184185A successfully refreshed from Google Patents.
Patent US3298664A successfully refreshed from Google Patents.
US3298664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded jack
Assignee: Duff Norton Co Inc
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Filing: 1964-08-27
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Granted: 1967-01-17
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Expires: 1984-08-27
Abstract
No abstract record available.
Inventors
- 👤 John J Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:15
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B66F3/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A NO-LOAD RETURN SHIELDED JACK COMPRISING A PLUNGER, A HOUSING FOR THE PLUNGER, SAID HOUSING HAVING A SUPPORT BASE, POWER MEANS FOR ACTIVATING THE PLUNGER IN ONE DIRECTION, A LOAD SUPPORT TOP PLATE ENGAGING THE PLUNGER OUTER END, AND AN ELASTOMERIC SLEEVE EXTERIORLY SECURED TO THE HOUSING AND AT ONE END TO THE TOP PLATE, SAID SLEEVE HAVING SUFFICIENT POTENTIAL ENERGY STORAGE CAPACITY TO RETRACT THE PLUNGER WHEN DEACTIVATED, WHEREBY THE SLEEVE SHIELDS THE PLUNGER UPON EXTENSION FROM THE HOUSING, AND UPON DEACTIVATION OF THE POWER THE ELASTICITY OF THE SLEEVE RETURNS THE PLUNGER TO ITS RETRACTED POSITION.
Claim 2
Dependent Claim
98 words
A NO-LOAD RETURN SHIELDED JACK COMPRISING A PLUNGER, A HOUSING FOR THE PLUNGER, SAID HOUSING HAVING A SUPPORT BASE, POWER MEANS FOR ACTIVATING THE PLUNGER IN ONE DIRECTION, A LOAD SUPPORT TOP PLATE ENGAGING THE PLUNGER OUTER END, AND AN ELASTOMERIC SLEEVE EXTERIORLY SECURED TO THE HOUSING AND AT ONE END TO THE TOP PLATE, SAID SLEEVE HAVING SUFFICIENT POTENTIAL ENERGY STORAGE CAPACITY TO RETRACT THE PLUNGER WHEN DEACTIVATED, WHEREBY THE SLEEVE SHIELDS THE PLUNGER UPON EXTENSION FROM THE HOUSING, AND UPON DEACTIVATION OF THE POWER THE ELASTICITY OF THE SLEEVE RETURNS THE PLUNGER TO ITS RETRACTED POSITION.
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 |