Patent US3397357A successfully refreshed from Google Patents.
US3397357A
Expired / Lapsed
US
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Inductive device for centering a punch within its die
Assignee: Federal Mogul Ignition LLC
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Filing: 1967-10-02
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Granted: 1968-08-13
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Expires: 1987-10-02
Abstract
No abstract record available.
Inventors
- 👤 Edward R Metzker
- 👤 Sam J Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:57
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/10; B21D37/12
Claims Analysis
Total Claims: 0
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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) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |