US3564575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pistons
Assignee: Associated Engineering Ltd
•
Filing: 1969-03-05
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Granted: 1971-02-16
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Expires: 1989-03-05
Abstract
Abstract THE PRESENT INVENTION RELATES TO PISTONS AND TO METHODS FOR THEIR MANUFACTURE. ACCORDING TO THE INVENTION A PISTON INCLUDES FILAMENTARY REINFORCEMENT PROVIDED AT LEAST IN THE REGION OF THE OR EACH GUDGEON PIN BORE. THE FILAMENTARY REINFORCEMENT MAY EXTEND FROM THE REGION OF OR ADJACENT TO THE PISTON CROWN TO THE REGION OF THE OR EACH GUDGEON PIN BORE.
Inventors
- 👤 John Anthony Catherall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:24
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/001; B; B23; B23P; B23P15/00; B23P15/10; F05; F05C; F05C2253/00; F05C2253/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49249; Y10T29/49256; Y10T29/49259
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |