US2575233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust muffler with conical baffle plates
Assignee: Individual
•
Filing: 1947-10-22
•
Granted: 1951-11-13
•
Expires: 1967-10-22
Abstract
No abstract record available.
Inventors
- 👤 Plasse Gustave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:46
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/08; F01N13/082; F01N1/00; F01N1/08; F01N1/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US938101A
Cited
FR552142A
Cited
US1859400A
Cited
US2065343A
Cited
US2051675A
Cited
US2024834A
Cited
US2122086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |