Patent US2844000A successfully refreshed from Google Patents.
US2844000A
Expired / Lapsed
US
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Gasoline engine exhaust flame arrestor
Assignee: Individual
•
Filing: 1954-12-09
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Granted: 1958-07-22
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Expires: 1974-12-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Alton Bayne Neild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:24
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2808A
Cited
US282933A
Cited
US857693A
Cited
US955504A
Cited
US1399903A
Cited
US1487312A
Cited
US2531139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |