Patent WO1998003218A1 successfully refreshed from Google Patents.
US2578213A
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US
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Vibrating mechanism for dynamic mold casting machines
Assignee: Huntington Alloys Corp
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Filing: 1948-10-02
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Granted: 1951-12-11
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Expires: 1968-10-02
Abstract
No abstract record available.
Inventors
- 👤 Welblund Albert George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:10
CPC Classifications
B; B22; B22D; B22D27/00; B22D27/08; B22D11/00; B22D11/04; B22D11/053; B22D11/0535; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056
Claims Analysis
Total Claims: 0
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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) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |