US3188805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Individual
•
Filing: 1963-02-14
•
Granted: 1965-06-15
•
Expires: 1983-02-14
Abstract
No abstract record available.
Inventors
- 👤 Charles L Gahagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:58
CPC Classifications
F; F02; F02B; F02B71/00; F02B71/04; F02B71/06; F02K; F02K5/00; F02K5/02; F02K5/023; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
AN INTERNAL COMBUSTION ENGINE COMPRISING A CYLINDER HAVING A CYLINDER HEAD AT EACH END AND AN EXHAUST PORT MIDWAY BETWEEN THE TWO HEADS, A PISTON SLIDABLY FITTED IN SAID CYLINDER, MEANS FOR SUPPLYING COMBUSTION AIR UNDER PRESSURE INTO EACH END OF THE CYLINDER, CONTINOUSLY OPEN MEANS FOR INJECTING FUEL INTO EACH END OF THE CYLINDER, MEANS IN EACH END OF THE CYLINDER FOR IGNITING THE FUEL, AND A TAPERED EXHAUST NOZZLE EXTENDING RADIALLY FROM THE CYLINDER INTO WHICH THE EXHAUST PORT OPENS.
References Cited (Backward Citations)
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GB190600948A
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GB190727724A
Cited
US1148206A
Cited
US1653373A
Cited
GB208150A
Cited
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Cited
US2398221A
Cited
GB565952A
Cited
DE921605C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |