US3077240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber glass wet muffler for marine engines
Assignee: DT PARKS Corp A CORP OF
•
Filing: 1961-06-05
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Granted: 1963-02-12
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 William M Betts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/004; F01N13/005; F01N2530/00; F01N2530/18; F01N2530/20; F01N2590/00; F01N2590/02; Y; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A "WET" TYPE MUFFLER FOR MARINE ENGINES COMPRISING, AN ELONGATED SHELL COMPOSED OF FIBER GLASS AND CONSISTING OF JOINED UPPER AND LOWER SHELL SECTIONS, SAID SHELL HAVING INLET AND OUTLET PORTS RESPECTIVELY LOCATED AT ITS OPPOSITE ENDS, SAID PORTS BEING LOCATED IN AXIAL DISALIGNMENT, A PLURALITY OF SPACED BAFFLE PLATES WITHIN THE SHELL, EACH PLATE BEING PROVIDED WITH A CENTRAL APERTURE SURROUNDED BY A PLURALITY OF HOLES, AN ARCUATE FOIL DISPOSED ON EACH BAFFLE PLATE AT THE CENTRAL APERTURE THEREIN, SAID
Claim 2
Dependent Claim
81 words
A "WET" TYPE MUFFLER FOR MARINE ENGINES COMPRISING, AN ELONGATED SHELL COMPOSED OF FIBER GLASS AND CONSISTING OF JOINED UPPER AND LOWER SHELL SECTIONS, SAID SHELL HAVING INLET AND OUTLET PORTS RESPECTIVELY LOCATED AT ITS OPPOSITE ENDS, SAID PORTS BEING LOCATED IN AXIAL DISALIGNMENT, A PLURALITY OF SPACED BAFFLE PLATES WITHIN THE SHELL, EACH PLATE BEING PROVIDED WITH A CENTRAL APERTURE SURROUNDED BY A PLURALITY OF HOLES, AN ARCUATE FOIL DISPOSED ON EACH BAFFLE PLATE AT THE CENTRAL APERTURE THEREIN, SAID
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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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |