Patent US2761525A successfully refreshed from Google Patents.
US2761525A
Expired / Lapsed
US
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Muffler
Assignee: Walker Manufacturing Company of Wisconsin
•
Filing: 1950-07-26
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Granted: 1956-09-04
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Expires: 1970-07-26
Abstract
No abstract record available.
Inventors
- 👤 Chester C Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:13
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N1/00; F01N1/003; F01N1/006; F01N1/02; F01N1/023; F01N13/14; F01N13/1844; F01N13/185; F01N2310/00; F01N2310/02; F01N2450/00; F01N2450/20; F01N2450/22; F01N2470/00; F01N2470/02; F01N2470/10; F01N2470/24; F01N2490/00; F01N2490/15; F01N2490/155; F01N2530/00; F01N2530/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 0
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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) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |