US3400784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler with tangential exhaust intake and porous ends
Assignee: Individual
•
Filing: 1965-10-19
•
Granted: 1968-09-10
•
Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Shannon O Thrasher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N13/1844; F01N1/00; F01N1/08; F01N1/082; F01N1/086; F01N1/087; F01N1/12; F01N1/16; F01N1/20; F01N13/1855; F01N13/1888; F01N13/1894; F01N2240/00; F01N2240/20; F01N2260/00; F01N2260/06; F01N2310/00; F01N2310/02; F01N2450/00; F01N2450/24; F01N2470/00; F01N2470/18; F01N2490/00; F01N2490/08; Y; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE598791C
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FR348265A
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GB191203446A
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GB191410421A
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US1228185A
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US1341976A
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GB175107A
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GB259905A
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DE469258C
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DE557140C
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GB380305A
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FR888801A
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US2748883A
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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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |