Patent US2674087A successfully refreshed from Google Patents.
US2674087A
Expired / Lapsed
US
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Exhaust deflector
Assignee: Peters and Russell Inc
•
Filing: 1948-05-13
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Granted: 1954-04-06
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Expires: 1968-05-13
Abstract
No abstract record available.
Inventors
- 👤 Linus E Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:03
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US340263A
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US1017638A
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US1101699A
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US1217615A
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US1491873A
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US1813189A
Cited
GB476931A
Cited
US2161895A
Cited
US2162683A
Cited
US2500510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |