Patent US3311713A successfully refreshed from Google Patents.
US3311713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headband and cord sets for earphones
Assignee: Astatic Corp
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Filing: 1963-07-03
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Granted: 1967-03-28
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Expires: 1983-07-03
Abstract
No abstract record available.
Inventors
- 👤 Ronald A Knuebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:56
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/04; H04M1/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A HEADBAND ASSEMBLY FOR HEADPHONES, A PAIR OF CURVED U-SHAPED SIDE BANDS DISPOSED WITH THEIR CLOSED ENDS SPACED FROM EACH OTHER AND THEIR OPEN ENDS IN CONFRONTING RELATION, AN EARPHONE CAPTIVELY AND SLIDABLY ENGAGED ON EACH OF SAID BANDS, A CURVED CUSHION ASSEMBLY UNDERLYING THE JUNCTURE OF SAID BANDS, A GROOVED BOSS ON THE UPPER SIDE OF SAID CUSHION ASSEMBLY FOR RECEIVING AND DISENGAGEABLY LOCKING SAID BANDS TO EACH OTHER AND TO SAID BOSS, A METAL CLIP ANCHORING SAID BANDS ON SAID BOSS, PLURAL CONDUCTOR MEANS ANCHORED ADJACENT SAID BOSS AND EXTENDING TO SAID EARPHONES, AND A COVER OVER THE OUTER SURFACE OF SAID CUSHION ASSEMBLY, SAID COVER INCLUDING MEANS TO MAINTAIN SAID BANDS LOCKED, TO MAINTAIN ANCHORAGE OF SAID CONDUCTORS AND TO SECURELY ATTACH TO SAID CUSHION ASSEMBLY.
Claim 2
Dependent Claim
130 words
IN A HEADBAND ASSEMBLY FOR HEADPHONES, A PAIR OF CURVED U-SHAPED SIDE BANDS DISPOSED WITH THEIR CLOSED ENDS SPACED FROM EACH OTHER AND THEIR OPEN ENDS IN CONFRONTING RELATION, AN EARPHONE CAPTIVELY AND SLIDABLY ENGAGED ON EACH OF SAID BANDS, A CURVED CUSHION ASSEMBLY UNDERLYING THE JUNCTURE OF SAID BANDS, A GROOVED BOSS ON THE UPPER SIDE OF SAID CUSHION ASSEMBLY FOR RECEIVING AND DISENGAGEABLY LOCKING SAID BANDS TO EACH OTHER AND TO SAID BOSS, A METAL CLIP ANCHORING SAID BANDS ON SAID BOSS, PLURAL CONDUCTOR MEANS ANCHORED ADJACENT SAID BOSS AND EXTENDING TO SAID EARPHONES, AND A COVER OVER THE OUTER SURFACE OF SAID CUSHION ASSEMBLY, SAID COVER INCLUDING MEANS TO MAINTAIN SAID BANDS LOCKED, TO MAINTAIN ANCHORAGE OF SAID CONDUCTORS AND TO SECURELY ATTACH TO SAID CUSHION ASSEMBLY.
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |