Patent US3042138A successfully refreshed from Google Patents.
US3042138A
Expired / Lapsed
US
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Exhaust muffler
Assignee: Individual
•
Filing: 1961-02-07
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Granted: 1962-07-03
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Expires: 1981-02-07
Abstract
No abstract record available.
Inventors
- 👤 Reinert Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:23
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N13/1844; F01N1/00; F01N1/08; F01N1/083; F01N1/089; F01N13/1855; F01N13/1888; F01N13/1894; F01N3/00; F01N3/02; F01N3/021; F01N3/033; F01N3/0335; F01N2230/00; F01N2230/02; F01N2450/00; F01N2450/24; F01N2470/00; F01N2470/02; F01N2470/10; F01N2490/00; F01N2490/02; F01N2490/08; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1187581A
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US1567298A
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US1766945A
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US2031451A
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GB484771A
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US2107588A
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US2259516A
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US2382159A
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US2710025A
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US2958389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |