US3125082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine cylinder heads
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
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Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:29
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/26; F02F1/42; F02F1/4214; F02B; F02B3/00; F02B3/06; F02F2001/244; F02F2001/247; F02F2001/248; F02F2001/249
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
AN INTERNAL COMBUSTION ENGINE STRUCTURE INCLUDING A CYLINDER AND A CYLINDER HEAD THEREFOR, A SEPARATE REMOVEABLE, AND REPLACEABLE FIRE PLATE INTERPOSED BETWEEN SAID CYLINDER AND SAID CYLINDER HEAD AND FORMING A COMBUSTION SPACE WALL OR DECK, SAID FIRE PLATE BEING A SUBSTANTIALLY FLAT PLATE, MEANS RIGIDLY BUT RELEASABLY SECURING A SMALL AREA OF THE CENTER OF SAID FIRE PLATE TO A COMPARATIVELY COOL PART OF THE CYLINDER HEAD, THE REMAINING AREA OF SAID PLATE BEING SUBSTANTIALLY FREE TO EXPAND AND CON-
Claim 2
Dependent Claim
81 words
AN INTERNAL COMBUSTION ENGINE STRUCTURE INCLUDING A CYLINDER AND A CYLINDER HEAD THEREFOR, A SEPARATE REMOVEABLE, AND REPLACEABLE FIRE PLATE INTERPOSED BETWEEN SAID CYLINDER AND SAID CYLINDER HEAD AND FORMING A COMBUSTION SPACE WALL OR DECK, SAID FIRE PLATE BEING A SUBSTANTIALLY FLAT PLATE, MEANS RIGIDLY BUT RELEASABLY SECURING A SMALL AREA OF THE CENTER OF SAID FIRE PLATE TO A COMPARATIVELY COOL PART OF THE CYLINDER HEAD, THE REMAINING AREA OF SAID PLATE BEING SUBSTANTIALLY FREE TO EXPAND AND CON-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |