US3110239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cap for vertical exhaust pipe of internal combustion engine
Assignee: Individual
•
Filing: 1960-11-28
•
Granted: 1963-11-12
•
Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 Jr George Dashwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:38
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/08; F01N13/085; F01N2590/00; F01N2590/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US501253A
Cited
US862626A
Cited
US972378A
Cited
CH195136A
Cited
US2337382A
Cited
US2368320A
Cited
US2420700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |