US3303830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor for rotary combustion engine
Assignee: American Motors Corp
•
Filing: 1966-04-22
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Granted: 1967-02-14
•
Expires: 1986-04-22
Abstract
No abstract record available.
Inventors
- 👤 Fingeroot Max
- 👤 Paul L Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:05
CPC Classifications
F; F02; F02B; F02B53/00; F02B2053/005; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2730/00; F02B2730/01; F02B2730/018; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A ROTOR FOR A ROTARY COMBUSTION ENGINE COMPRISING: (A) AN OUTER PERIPHERAL RIM; (B) SIDE WALLS EXTENDING INWARDLY FROM SAID RIM; (C) AN INNER WALL EXTENDING BETWEEN SAID SIDE WALLS INWARD OF SAID RIM; (D) A SERIES OF SPACED RIBS WITH EACH RIB EXTENDING FROM SAID RIM INNER SURFACE TO THE OUTER SURFACE OF SAID INNER WALL AND BETWEEN SAID SIDE WALLS, SUCCEEDING RIBS OF SAID SERIES ALTERNATELY EXTENDING FROM
Claim 2
Dependent Claim
70 words
A ROTOR FOR A ROTARY COMBUSTION ENGINE COMPRISING: (A) AN OUTER PERIPHERAL RIM; (B) SIDE WALLS EXTENDING INWARDLY FROM SAID RIM; (C) AN INNER WALL EXTENDING BETWEEN SAID SIDE WALLS INWARD OF SAID RIM; (D) A SERIES OF SPACED RIBS WITH EACH RIB EXTENDING FROM SAID RIM INNER SURFACE TO THE OUTER SURFACE OF SAID INNER WALL AND BETWEEN SAID SIDE WALLS, SUCCEEDING RIBS OF SAID SERIES ALTERNATELY EXTENDING FROM
References Cited (Backward Citations)
FR688172A
Cited
US3204614A
Cited
US3131679A
Cited
US3111884A
Cited
GB974370A
Cited
US3112870A
Cited
GB978210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |