US3099241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas dissipating apparatus
Assignee: Individual
•
Filing: 1962-01-22
•
Granted: 1963-07-30
•
Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Kenneth J Macfarlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:57
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN COMBINATION WITH A BOAT HAVING AN EXHAUST PIPE, A HELICAL TUBE POSITIONED WITHIN THE EXHAUST PIPE HAVING A PLURALITY OF OPENINGS THEREIN THROUGH WHICH WATER MAY BE PASSED FROM THE TUBE INTO THE EXHAUST PIPE AND MEANS FOR PASSING WATER THROUGHT THE TUBE AND OUT OF THE OPENINGS INTO THE EXHAUST PIPE WHEREBY THE NOISE AND HEAT OF THE EXHAUST GASES ARE DISSIPATED.
Claim 2
Dependent Claim
64 words
IN COMBINATION WITH A BOAT HAVING AN EXHAUST PIPE, A HELICAL TUBE POSITIONED WITHIN THE EXHAUST PIPE HAVING A PLURALITY OF OPENINGS THEREIN THROUGH WHICH WATER MAY BE PASSED FROM THE TUBE INTO THE EXHAUST PIPE AND MEANS FOR PASSING WATER THROUGHT THE TUBE AND OUT OF THE OPENINGS INTO THE EXHAUST PIPE WHEREBY THE NOISE AND HEAT OF THE EXHAUST GASES ARE DISSIPATED.
References Cited (Backward Citations)
US1069945A
Cited
US1421432A
Cited
US1877523A
Cited
US2204294A
Cited
US2365846A
Cited
FR1025313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |