Patent US3302625A successfully refreshed from Google Patents.
US3302625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine
Assignee: Individual
•
Filing: 1964-05-15
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Granted: 1967-02-07
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Expires: 1984-05-15
Abstract
No abstract record available.
Inventors
- 👤 Cunningham Kelly Gore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:08
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/02; F01C1/063; F01C1/077; F02; F02B; F02B53/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
210 words
A ROTARY INTERNAL COMBUSTION ENGINE WITH A FUEL SUPPLY AND EXHAUST SYSTEM, THE ENGINE COMPRISING: A HOUSING HAVING AN OPERATING SECTION AND A CONTROL SECTION; A CHAMBER CASING ASSEMBLY, INCLUDING CHAMBER CASING WALLS, DEFINING A CHAMBER, MOUNTED IN THE OPERATING SECTION OF THE HOUSING; THE CASING WALLS HAVING A SPACE THEREBETWEEN; A SHAFT EXTENDING THROUGH THE HOUSING HAVING FIRST SPLINE MEANS THEREON IN THE OPERATING SECTION AND SECOND SPLINE MEANS THEREON IN THE CONTROL SECTION; A FIRST PLATE SECURED TO THE FIRST SPLINE MEANS OF THE SHAFT FOR ROTATION WITH THE SHAFT AND HAVING ARMS THEREON, THE PLATE EXTENDING INTO THE SPACE BETWEEN THE CASING WALLS; A PISTON MOUNTED ON EACH OF THE ARMS AND MOVABLE IN THE CHAMBER; A SECOND PLATE MOUNTED ADJACENT OF THE FIRST PLATE ABOUT THE SHAFT AND HAVING SECOND ARMS THEREON; A SECOND PISTON ON EACH OF SECOND ARMS, THE SECOND PLATE BEING DISPOSED IN THE SLOT AND THE SECOND PISTONS BEING MOVABLE IN THE CHAMBER; A DIVISION WALL AT ONE SIDE OF THE OPERATING SECTION OF THE HOUSING; THE CASING WALLS HAVING OPENINGS THEREIN ON OPPOSITE SIDES OF THE DIVISION WALL, ONE SUCH OPENING BEING AN INLET OPENING FOR FUEL, AND THE OTHER SUCH OPENING BEING AN EXHAUST PORT FOR THE PRODUCTS OF COMBUSTION;
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |