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Patent US2824619A successfully refreshed from Google Patents.
US2824619A
Expired / Lapsed
US
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Muffler
Assignee: Individual
•
Filing: 1955-07-18
•
Granted: 1958-02-25
•
Expires: 1975-07-18
Abstract
No abstract record available.
Inventors
- 👤 Bremer De La Wilmore
- 👤 John F Lovejoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:19
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/005; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2046193A
Cited
US1927947A
Cited
US2073951A
Cited
US2084435A
Cited
US2270825A
Cited
US2516949A
Cited
US2582915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |