Patent US3303902A successfully refreshed from Google Patents.
US3303902A
Expired / Lapsed
US
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Ear piece
Assignee: COATINGS ENGINEERING Corp
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Filing: 1965-12-20
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Granted: 1967-02-14
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Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 James M Knott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:32
CPC Classifications
A; A61; A61B; A61B7/00; A61B7/02; H; H04; H04M; H04M1/00; H04M1/02; H04M1/21; H04M1/215; H04M1/2155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
AN EAR PIECE FOR A HEADSET HAVING A TUBULAR POST DEFINING A SOUND PASSAGE, COMPRISING, (A) A UNITARY BODY OF A SOFT RESILIENT MATERIAL, (B) SAID BODY BEING FORMED WITH INNER AND OUTER CONCENTRIC TUBULAR WALLS SPACED FROM ONE ANOTHER TO DEFINE AN ANNULAR VOLUME THEREBETWEEN EXTENDING FROM END TO END OF SAID BODY, (C) THE INNER AND OUTER WALL BEING JOINED TO ONE ANOTHER AT ONE END THEREOF AND DISCONNECTED AT THE OPPOSITE END, (D) THE OUTSIDE DIAMETER OF SAID BODY AT SAID ONE END BEING ENLARGED TO FIT WITHIN THE EXTERNAL EAR OF THE WEARER AND OVER THE EAR CANAL OPENING, AND, (E) MEANS MOUNTING THE OPPOSITE END OF SAID BODY TO THE END OF SAID POST WHEREBY ONLY A MINOR PORTION OF SAID BODY IS TELESCOPED OVER SAID POST AND THE MAJOR PORTION OF SAID BODY EXTENDS OUT FROM THE END OF SAID POST TO PERMIT ANGULAR DEFORMATION OF SAID MAJOR PORTION.
Claim 2
Dependent Claim
155 words
AN EAR PIECE FOR A HEADSET HAVING A TUBULAR POST DEFINING A SOUND PASSAGE, COMPRISING, (A) A UNITARY BODY OF A SOFT RESILIENT MATERIAL, (B) SAID BODY BEING FORMED WITH INNER AND OUTER CONCENTRIC TUBULAR WALLS SPACED FROM ONE ANOTHER TO DEFINE AN ANNULAR VOLUME THEREBETWEEN EXTENDING FROM END TO END OF SAID BODY, (C) THE INNER AND OUTER WALL BEING JOINED TO ONE ANOTHER AT ONE END THEREOF AND DISCONNECTED AT THE OPPOSITE END, (D) THE OUTSIDE DIAMETER OF SAID BODY AT SAID ONE END BEING ENLARGED TO FIT WITHIN THE EXTERNAL EAR OF THE WEARER AND OVER THE EAR CANAL OPENING, AND, (E) MEANS MOUNTING THE OPPOSITE END OF SAID BODY TO THE END OF SAID POST WHEREBY ONLY A MINOR PORTION OF SAID BODY IS TELESCOPED OVER SAID POST AND THE MAJOR PORTION OF SAID BODY EXTENDS OUT FROM THE END OF SAID POST TO PERMIT ANGULAR DEFORMATION OF SAID MAJOR PORTION.
References Cited (Backward Citations)
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Cited
US1045812A
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US2458884A
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US2717596A
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US2803308A
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US2888921A
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US2934160A
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |