Patent US3293166A successfully refreshed from Google Patents.
US3293166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for electrolytic machining
Assignee: General Electric Co
•
Filing: 1963-05-29
•
Granted: 1966-12-20
•
Expires: 1983-05-29
Abstract
No abstract record available.
Inventors
- 👤 Irwin L Cowing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:32
CPC Classifications
B; B23; B23H; B23H9/00; B23H9/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN ELECTRLYTIC MACHINING APPARATUS INCLUDING AN ELECTRODE COMPRISING: A HOLLOW, METALLIC INNER MEMBER OPEN AT A WORKING END; AN OUTER METALLIC MEMBER DISPOSED ABOUT THE OUTER PERIPHERY OF THE INNER MEMBER IN SPACED APART RELATIONSHIP THEREWITH TO FORM BETWEEN THE INNER MEMBER AND THE OUTER MEMBER A PERIPHERAL PASSAGE OPEN AT THE WORKING END, THE OUTER MEMBER HAVING ON ITS OUTER PERIPHERY A DIELECTRIC COATING; AND MEANS AT THE WORKING END TO DIRECT ELECTRLYTE FLOWING FROM THE PERIPHERAL PASSAGE IN A DIRECTION OUTWARDLY TOWARD THE WORKPIECE AND AWAY FROM THE INNER MEMBER.
Claim 2
Dependent Claim
92 words
AN ELECTRLYTIC MACHINING APPARATUS INCLUDING AN ELECTRODE COMPRISING: A HOLLOW, METALLIC INNER MEMBER OPEN AT A WORKING END; AN OUTER METALLIC MEMBER DISPOSED ABOUT THE OUTER PERIPHERY OF THE INNER MEMBER IN SPACED APART RELATIONSHIP THEREWITH TO FORM BETWEEN THE INNER MEMBER AND THE OUTER MEMBER A PERIPHERAL PASSAGE OPEN AT THE WORKING END, THE OUTER MEMBER HAVING ON ITS OUTER PERIPHERY A DIELECTRIC COATING; AND MEANS AT THE WORKING END TO DIRECT ELECTRLYTE FLOWING FROM THE PERIPHERAL PASSAGE IN A DIRECTION OUTWARDLY TOWARD THE WORKPIECE AND AWAY FROM THE INNER MEMBER.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |