US3567604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of sonic resonant energy in electrical machining
Assignee: Individual
•
Filing: 1967-05-29
•
Granted: 1971-03-02
•
Expires: 1987-05-29
Abstract
Abstract A DEVICE AND METHOD FOR ELECTRICAL MACHINING WHICH CONSISTS OF APPLYING SONIC ENERGY TO THE WORK TOOL ELEMENT. THE WORK TOOL IS RESONANTLY VIBRATED SO THAT WAVE PATTERN IS TRANSMITTED TO THE TIP THEREOF ADJACENT THE WORKPIECE AND IS TRANSMITTED THROUGH THE WORKING FLUID TO THE WORKPIECE.
Inventors
- 👤 Albert G Bodine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:19
CPC Classifications
B; B23; B23H; B23H7/00; B23H7/26; B23H7/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |