US2884092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark arresters
Assignee: Individual
•
Filing: 1956-09-17
•
Granted: 1959-04-28
•
Expires: 1976-09-17
Abstract
No abstract record available.
Inventors
- 👤 Reindl Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:48
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/08; F01N3/00; F01N3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US429347A
Cited
US2732913A
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US675276A
Cited
US1038707A
Cited
US1556934A
Cited
US2553326A
Cited
US2517623A
Cited
US2600262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |