Patent US3292731A successfully refreshed from Google Patents.
US3292731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust muffler pipe assembly
Assignee: Individual
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Filing: 1965-04-12
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Granted: 1966-12-20
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Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 James L Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:01
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/08; F01N1/00; F01N1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN EXHAUST SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, WITH SAID EXHAUST SYSTEM CONNECTED TO SAID ENGINE''S EXHAUST MANIFOLD HAVING, (A) A MUFFLER PIPE ASSEMBLY, (B) A CONNECTING MEANS JOINING SAID EXHAUST MANIFOLD WITH SAID MUFFLER PIPE ASSEMBLY, (C) AN END AREA CONNECTED WITH SAID MUFFLER PIPE ASSEMBLY TO DISCHARGE THE EXHAUST GASES FORMED BY SAID ENGINE FROM THE EXHAUST SYSTEM, (D) AN OUTER CASING MEMBER AS THE OUTSIDE UNIT OF SAID MUFFLER PIPE ASSEMBLY, (E) A TUBULAR PERFORATED INNER LINER MEMBER SECURED WITHIN SAID OUTER CASING MEMBER, (F) SAID INNER LINER MEMBER HAVING AT LEAST ONE COMPRESSED AREA SECTION ALONG ITS AXIAL LENGTH FORMING
Claim 2
Dependent Claim
104 words
AN EXHAUST SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, WITH SAID EXHAUST SYSTEM CONNECTED TO SAID ENGINE''S EXHAUST MANIFOLD HAVING, (A) A MUFFLER PIPE ASSEMBLY, (B) A CONNECTING MEANS JOINING SAID EXHAUST MANIFOLD WITH SAID MUFFLER PIPE ASSEMBLY, (C) AN END AREA CONNECTED WITH SAID MUFFLER PIPE ASSEMBLY TO DISCHARGE THE EXHAUST GASES FORMED BY SAID ENGINE FROM THE EXHAUST SYSTEM, (D) AN OUTER CASING MEMBER AS THE OUTSIDE UNIT OF SAID MUFFLER PIPE ASSEMBLY, (E) A TUBULAR PERFORATED INNER LINER MEMBER SECURED WITHIN SAID OUTER CASING MEMBER, (F) SAID INNER LINER MEMBER HAVING AT LEAST ONE COMPRESSED AREA SECTION ALONG ITS AXIAL LENGTH FORMING
References Cited (Backward Citations)
US1934462A
Cited
US3209859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |