US3111190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine engine muffler
Assignee: Individual
•
Filing: 1961-01-03
•
Granted: 1963-11-19
•
Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 Hubert S Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:42
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/004; F01N2590/00; F01N2590/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
FOR USE WITH A MARINE ENGINE HAVING A HORIZONTAL EXHAUST PIPE CARRYING THE ENGINE COOLING WATER AND EXHAUST GASES, SAID PIPE HAVING A SERIES OF UNIPLANAR VANES WITHIN THE SAME AND SPACED AXIALLY FROM EACH OTHER ALONG THE PIPE, ALTERNATE OF THE VANES IN THE SERIES EXTENDING UPWARDLY AND OUTWARDLY TO DEFLECT THE COOLING WATER AND EXHAUST GASES UPWARDLY AND OUTWARDLY AND THE OTHER OF
Claim 2
Dependent Claim
65 words
FOR USE WITH A MARINE ENGINE HAVING A HORIZONTAL EXHAUST PIPE CARRYING THE ENGINE COOLING WATER AND EXHAUST GASES, SAID PIPE HAVING A SERIES OF UNIPLANAR VANES WITHIN THE SAME AND SPACED AXIALLY FROM EACH OTHER ALONG THE PIPE, ALTERNATE OF THE VANES IN THE SERIES EXTENDING UPWARDLY AND OUTWARDLY TO DEFLECT THE COOLING WATER AND EXHAUST GASES UPWARDLY AND OUTWARDLY AND THE OTHER OF
References Cited (Backward Citations)
US213348A
Cited
US1048435A
Cited
US1065707A
Cited
DE536848C
Cited
US1131862A
Cited
US1182611A
Cited
US1478948A
Cited
GB281808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |