US3135350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler for internal combustion motors
Assignee: Individual
•
Filing: 1961-01-06
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Granted: 1964-06-02
•
Expires: 1981-01-06
Abstract
No abstract record available.
Inventors
- 👤 Eugene A Mattie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:26
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1861; F01N13/1866; F01N1/00; F01N1/08; F01N1/083; F01N13/1838; F01N13/1844; F01N13/1855; F01N13/1888; F01N2260/00; F01N2260/18; F01N2450/00; F01N2450/24; F01N2470/00; F01N2470/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A MUFFLER FOR THE EXHAUST FROM AN INTERNAL COMBUSTION MOTOR, COMPRISING TWO HALVES OF IDENTICAL FORM SECURED TOGETHER, EACH SAID HALF COMPRISING A SEMI-CYLINDRICAL CASING PART, AN AXIAL STEM IN SAID CASING PART, A SERIES OF ARCUATELY CURVED BLADES DISPOSED IN EACH HALF WITH AN EDGE THEREOF ABUTTING THE INNER SURFACE OF THE SEMI-CYLINDER, EACH SAID BLADE HAVING A BROAD END PORTION DISPOSED IN A TRANSVERSE PLANE WHICH IS PERPENDICULAR TO THE AXIS OF THE SEMI-CYLINDER, THE OTHER END OF EACH BLADE BEING NARROWER AND AT A STEEP ANGLE TO A TRANSVERSE PLANE.
Claim 2
Dependent Claim
93 words
A MUFFLER FOR THE EXHAUST FROM AN INTERNAL COMBUSTION MOTOR, COMPRISING TWO HALVES OF IDENTICAL FORM SECURED TOGETHER, EACH SAID HALF COMPRISING A SEMI-CYLINDRICAL CASING PART, AN AXIAL STEM IN SAID CASING PART, A SERIES OF ARCUATELY CURVED BLADES DISPOSED IN EACH HALF WITH AN EDGE THEREOF ABUTTING THE INNER SURFACE OF THE SEMI-CYLINDER, EACH SAID BLADE HAVING A BROAD END PORTION DISPOSED IN A TRANSVERSE PLANE WHICH IS PERPENDICULAR TO THE AXIS OF THE SEMI-CYLINDER, THE OTHER END OF EACH BLADE BEING NARROWER AND AT A STEEP ANGLE TO A TRANSVERSE PLANE.
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |