Patent US3557587A successfully refreshed from Google Patents.
US3557587A
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Forging method
Assignee: Federal Mogul LLC
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Filing: 1968-04-05
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Granted: 1971-01-26
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Expires: 1988-04-05
Abstract
Abstract A METHOD FOR FORMING FERROUS PARTS AT AN INTERMEDIATE TEMPERATURE BETWEEN NORMAL HOT FORGING AND COLD FORMING TEMPERATURES.
Inventors
- 👤 Jerry E Cardillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:46
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/64; B; B21; B21J; B21J3/00; B21K; B21K1/00; B21K1/04; C; C10; C10M; C10M7/00; C21; C21D; C21D9/00; C21D9/40; F16C33/02; F16C33/04; F16C33/06; F16C33/14; C10M2201/00; C10M2201/06; C10M2201/065; C10M2201/085; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/08; C10N2050/10; F16C2220/00; F16C2220/40; F16C2220/46; F16C2220/60; F16C2220/70; F16C2220/80; F16C2220/82; F16C2223/00; F16C2223/10; F16C2223/30
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |