Patent US2811969A successfully refreshed from Google Patents.
Patent US2383383A successfully refreshed from Google Patents.
US2383383A
Expired / Lapsed
US
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Electromagnetic vibratory metalworking apparatus
Assignee: Elox Corp
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Filing: 1943-10-13
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Granted: 1945-08-21
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Expires: 1963-10-13
Abstract
No abstract record available.
Inventors
- 👤 Henry V Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:09
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; H02K33/04; B; B23; B23K; B23K9/00
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) | 1948-08-20 | 1949-02-19 | 1949-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-20 | 1953-02-19 | 1953-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-20 | 1957-02-19 | 1957-08-21 | $7700.00 | Window Closed / Lapsed |