Patent US3432290A successfully refreshed from Google Patents.
US3432290A
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US
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Ferrous material
Assignee: Federal Mogul Coventry Ltd
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Filing: 1966-05-02
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Granted: 1969-03-11
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Expires: 1986-05-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin Bruce Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:10
CPC Classifications
C; C22; C22C; C22C37/00; C22C37/10; C21; C21D; C21D5/00; C22C33/00; C22C33/08; F; F16; F16J; F16J9/00; F16J9/26; C21D2211/00; C21D2211/002; C21D2211/006; C21D2211/008; C21D2211/009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |