Patent US3471724A successfully refreshed from Google Patents.
US3471724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetostrictive vibrator for high frequency machining of hard materials
Assignee: Cavitron Corp
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Filing: 1965-04-08
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Granted: 1969-10-07
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Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Lewis Balamuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:31
CPC Classifications
H; H10; H10N; H10N35/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2792674A
Cited
US2804725A
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US2818686A
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US2939251A
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US2991594A
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US3015914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |