Patent US2773553A successfully refreshed from Google Patents.
US2773553A
Expired / Lapsed
US
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Muffler
Assignee: MAN AG
•
Filing: 1953-02-13
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Granted: 1956-12-11
•
Expires: 1973-02-13
Abstract
No abstract record available.
Inventors
- 👤 Heurich Josef
- 👤 Garve Alexander Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:50
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/007; F02; F02M; F02M35/00; F02M35/12; F02M35/1205; F02M35/1211; F02M35/1227; F02M35/1272
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE110638C
Cited
FR399307A
Cited
US1032794A
Cited
US1366632A
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US2075316A
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US2073951A
Cited
US2043731A
Cited
AU2269435A
Cited
US2299112A
Cited
GB563110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |