Patent US2600236A successfully refreshed from Google Patents.
US2600236A
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Muffler with a plurality of passages
Assignee: ESTHER LARSEN
•
Filing: 1948-11-16
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Granted: 1952-06-10
•
Expires: 1968-11-16
Abstract
No abstract record available.
Inventors
- 👤 Stephen J Gibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:45
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/08; F01N1/082; F01N1/10; F01N1/16; F01N1/22; F01N2450/00; F01N2450/16; F01N2450/24
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) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |