Patent USRE27588E successfully refreshed from Google Patents.
USRE27588E
Expired / Lapsed
US
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Apparatus for shaping electrodes
Assignee: —
•
Filing: 1970-12-14
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Granted: 1973-02-27
•
Expires: 1990-12-14
Abstract
Abstract APPARATUS FOR SHAPING ELECTRODES COMPRISING AN ABRASIVE DIE CAVITY INTO WHICH AN ELECTRODE WORKPIECE IS FORCED AND WHEREIN AN OSCILLATORY MOTION IS GIVEN EITHER THE WORKPIECE OR THE DIE CAVITY TO THEREBY FROM THE WORKPIECE INTO THE INDENTICAL SHAPE AND CONTOUR OF THE DIE MEMBER.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:59
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50; B23Q1/54; B23Q1/5468; B24; B24B; B24B35/00; B24B35/005
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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |