US4571746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible headband
Assignee: Individual
•
Filing: 1983-02-24
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Granted: 1986-02-25
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Expires: 2003-02-24
Abstract
Abstract A headband comprises first and second headbands having their one ends pivotally interconnected and being foldable about their pivotal interconnection inwardly and outwardly in a single plane and having opposite ends with an earpiece carried thereby. Each of the headbands include at least three separate parts telescopically interengageable and which are of substantially equal lengths. Advantageously the central part may be made of plastic and includes a tubular portion into which the next adjacent part is telescopical. The tubular portions are advantageously provided at each end of the central part to permit a telescopic movement of each of the other parts into the middle part.
Inventors
- 👤 Rudolf Gorike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:08
CPC Classifications
H; H04; H04R; H04R5/00; H04R5/033; H04R5/0335; H04R1/00; H04R1/10; H04R1/1008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
224 words
A headband assembly comprising first and second headbands each having a first metal end, each first metal end being pivotally interconnected so that said headbands are foldable about the pivotal interconnection inwardly and outwardly in a single plane, said headbands each having a second metal end, an earpiece carried by each of said second metal ends of said headbands, said headbands each comprising at least three separate parts which are telescopically interengaged with each other and which are of substantially equal length, each of said headbands having a central part and a pair of metal strip end parts telescopically engaged with said central part, one metal strip end part of each headband carrying said first metal end and another metal strip end part of each headband carrying said second metal end, said central part of each headband being curved, being made of plastic and defining a pair of elongated rectangular channels which are substantially the same in length as lengths of said metal strip end parts so that said end parts can telescope into said channels with ends of said end parts opposite from said first and second ends of said headbands always being within said channels, said end parts being made of spring steel, the central part of each headband defining said channels to be one on top of the other and superimposed.
Claim 2
Dependent Claim
224 words
A headband assembly comprising first and second headbands each having a first metal end, each first metal end being pivotally interconnected so that said headbands are foldable about the pivotal interconnection inwardly and outwardly in a single plane, said headbands each having a second metal end, an earpiece carried by each of said second metal ends of said headbands, said headbands each comprising at least three separate parts which are telescopically interengaged with each other and which are of substantially equal length, each of said headbands having a central part and a pair of metal strip end parts telescopically engaged with said central part, one metal strip end part of each headband carrying said first metal end and another metal strip end part of each headband carrying said second metal end, said central part of each headband being curved, being made of plastic and defining a pair of elongated rectangular channels which are substantially the same in length as lengths of said metal strip end parts so that said end parts can telescope into said channels with ends of said end parts opposite from said first and second ends of said headbands always being within said channels, said end parts being made of spring steel, the central part of each headband defining said channels to be one on top of the other and superimposed.
References Cited (Backward Citations)
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Cited
FR1524956A
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US3272926A
Cited
US3327807A
Cited
GB1296160A
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US4445005A
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US4517418A
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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) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |