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US2936845A
Expired / Lapsed
US
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Muffler and collector ring assembly for radial engines
Assignee: THOMAS RALPH SNIDER
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Filing: 1955-10-31
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Granted: 1960-05-17
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Expires: 1975-10-31
Abstract
No abstract record available.
Inventors
- 👤 Meral O Miller
- 👤 James L Matheny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:16
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191109335A
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US1332663A
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GB210488A
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US1947987A
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US1874326A
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US1839192A
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US1978678A
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US2206259A
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US2280953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |