Patent US3132716A successfully refreshed from Google Patents.
US3132716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler
Assignee: L M COX Manufacturing CO Inc
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Filing: 1962-03-27
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Granted: 1964-05-12
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Expires: 1982-03-27
Abstract
No abstract record available.
Inventors
- 👤 Cole C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:53
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1861; A; A63; A63H; A63H27/00; A63H27/02; F01N1/00; F01N1/16; F01N1/165; F01N1/22; F01N13/1838; F01N13/1844; F02; F02B; F02B75/00; F02B75/34; F01N2260/00; F01N2260/02; F01N2470/00; F01N2470/28; F02B75/02; F02B2075/022; F02B2075/025; Y; Y10; Y10S; Y10S181/00; Y10S181/404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A MUFFLER FOR A MODEL ENGINE HAVING AN OPEN EXHAUST PORT COMPRISING: A MUFFLER HOUSING ADAPTED TO SURROUND SAID PORT; SAID HOUSING HAVING AN ANNULAR GROOVE ON ITS EXTERIOR AND AN OPENING IN SAID HOUSING ADAPTED TO ALIGN WITH SAID PORT; A FLEXIBLE SPRING SEATED IN SAID GROOVE, SAID SPRING BEING IN THE FORM OF A MAJOR SEGMENT OF A CYLINDER WITH AN OUTWARDLY EXTENDING TAB; SAID SPRING PROVIDING A GAP FORMING THE MINOR SEGMENT OF SAID CYLINDER AND BEING MOVABLE IN SAID GROOVE TO ALIGN SAID GAP WITH SAID OPENING OR TO COVER SAID OPENING AS DESIRED.
Claim 2
Dependent Claim
98 words
A MUFFLER FOR A MODEL ENGINE HAVING AN OPEN EXHAUST PORT COMPRISING: A MUFFLER HOUSING ADAPTED TO SURROUND SAID PORT; SAID HOUSING HAVING AN ANNULAR GROOVE ON ITS EXTERIOR AND AN OPENING IN SAID HOUSING ADAPTED TO ALIGN WITH SAID PORT; A FLEXIBLE SPRING SEATED IN SAID GROOVE, SAID SPRING BEING IN THE FORM OF A MAJOR SEGMENT OF A CYLINDER WITH AN OUTWARDLY EXTENDING TAB; SAID SPRING PROVIDING A GAP FORMING THE MINOR SEGMENT OF SAID CYLINDER AND BEING MOVABLE IN SAID GROOVE TO ALIGN SAID GAP WITH SAID OPENING OR TO COVER SAID OPENING AS DESIRED.
References Cited (Backward Citations)
US2089262A
Cited
US2937708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |