Patent US3189010A successfully refreshed from Google Patents.
US3189010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston for internal combustion engine
Assignee: Continental Aviation and Engineering Corp
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Filing: 1963-11-21
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Granted: 1965-06-15
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Expires: 1983-11-21
Abstract
No abstract record available.
Inventors
- 👤 Walter F Isley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:46
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/16; F02F3/20; F02F3/22; F02B; F02B23/00; F02B23/02; F02B23/06; F02B23/0675; F02F3/0015; F02F3/003; F02B2275/00; F02B2275/14; F02B3/00; F02B3/06; F05; F05C; F05C2201/00; F05C2201/04; F05C2201/0433; F05C2201/0448; F05C2251/00; F05C2251/04; F05C2251/042; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN AN INTERNAL COMBUSTION ENGINE A PISTON ASSEMBLY COMPRISING (A) A PISTON MEMBER AND A RING MEMBER SECURED TO SAID PISTON MEMBER, (B) SAID PISTON MEMBER HAVING A HEAD PORTION AND SAID HEAD PORTION HAVING A COMBUSTION CHAMBER CAVITY AND AN ANNULAR CAVITY SPACED FROM AND SUBSTANTIALLY ENCOMPASSING SAID COMBUSTION CHAMBER CAVITY, (C) SAID RING MEMBER BEING PROVIDED WITH A PLURALITY OF AXIALLY SPACED PISTON RING GROOVES AND BEING POSITIONED TO CLOSE SAID ANNULAR CAVITY,
Claim 2
Dependent Claim
75 words
IN AN INTERNAL COMBUSTION ENGINE A PISTON ASSEMBLY COMPRISING (A) A PISTON MEMBER AND A RING MEMBER SECURED TO SAID PISTON MEMBER, (B) SAID PISTON MEMBER HAVING A HEAD PORTION AND SAID HEAD PORTION HAVING A COMBUSTION CHAMBER CAVITY AND AN ANNULAR CAVITY SPACED FROM AND SUBSTANTIALLY ENCOMPASSING SAID COMBUSTION CHAMBER CAVITY, (C) SAID RING MEMBER BEING PROVIDED WITH A PLURALITY OF AXIALLY SPACED PISTON RING GROOVES AND BEING POSITIONED TO CLOSE SAID ANNULAR CAVITY,
References Cited (Backward Citations)
US2369906A
Cited
DE1001862B
Cited
GB802480A
Cited
US2800119A
Cited
FR1244722A
Cited
FR1246794A
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 |