US3126979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mufflers
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:29
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1833; F01N1/00; F01N1/16; F01N1/165; F01N13/08; F01N13/082; F01N13/1838; F01N13/1844; F01N13/1855; F01N2470/00; F01N2470/02; F01N2470/04; F01N2470/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A MUFFLER COMPRISING A HOLLOW CYLINDRICAL BODY INCLUDING A CYLINDRICAL WALL AND CAPPING END WALLS, ONE OF SAID END WALLS HAVING A RADIALLY OFFSET INLET OPENING FOR EXHAUST GASES AND SOUND WAVES, AN INNER CYLINDRICAL PARTITION BRIDGING SAID END WALLS AND DEFINING AN INNER CHAMBER INTO WHICH EXHAUST GASES AND SOUND WAVES ENTERING THE INLET OPENING FLOW AND AN OUTER CIRCUMFERENTIAL CHAMBER, SAID INNER CYLINDRICAL PARTITION HAVING CIRCUMFERENTIALLY SPACED OPENINGS THEREIN THROUGH WHICH GASES AND SOUND WAVES FLOW FROM THE INNER CHAMBER TO THE OUTER CIRCUM-
Claim 2
Dependent Claim
86 words
A MUFFLER COMPRISING A HOLLOW CYLINDRICAL BODY INCLUDING A CYLINDRICAL WALL AND CAPPING END WALLS, ONE OF SAID END WALLS HAVING A RADIALLY OFFSET INLET OPENING FOR EXHAUST GASES AND SOUND WAVES, AN INNER CYLINDRICAL PARTITION BRIDGING SAID END WALLS AND DEFINING AN INNER CHAMBER INTO WHICH EXHAUST GASES AND SOUND WAVES ENTERING THE INLET OPENING FLOW AND AN OUTER CIRCUMFERENTIAL CHAMBER, SAID INNER CYLINDRICAL PARTITION HAVING CIRCUMFERENTIALLY SPACED OPENINGS THEREIN THROUGH WHICH GASES AND SOUND WAVES FLOW FROM THE INNER CHAMBER TO THE OUTER CIRCUM-
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
US2320668A
Cited
US2643731A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |