US2834427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler having a cover and a retaining strip therefor
Assignee: Walker Manufacturing Company of Wisconsin
•
Filing: 1953-12-22
•
Granted: 1958-05-13
•
Expires: 1973-12-22
Abstract
No abstract record available.
Inventors
- 👤 Walter H Powers
- 👤 Benton D Jacokes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:29
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N13/1844; F01N13/14; F01N13/185; F01N2450/00; F01N2450/20; F01N2470/00; F01N2470/02; F01N2470/06; F01N2470/24; F01N2530/00; F01N2530/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1032827A
Cited
US1148900A
Cited
US1333533A
Cited
GB223327A
Cited
US2150530A
Cited
US2178778A
Cited
US2277132A
Cited
GB534926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |