US2485555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baffle type muffler with plural expansion chambers
Assignee: Individual
•
Filing: 1944-12-15
•
Granted: 1949-10-25
•
Expires: 1964-12-15
Abstract
No abstract record available.
Inventors
- 👤 Leonard R Bester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:24
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/08; F01N13/082; F01N1/00; F01N1/08; F01N1/14; F01N3/00; F01N3/02; F01N3/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US624062A
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GB190119777A
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FR380278A
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US1061272A
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US1162064A
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US1084883A
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US1169030A
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GB128934A
Cited
US1685701A
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US1760924A
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US1874326A
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US1990837A
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US1991014A
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US2024834A
Cited
US2088576A
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US2330534A
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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) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |