US3129473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Through-plug mold stool
Assignee: Carpenter Steel Co
•
Filing: 1960-11-09
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Granted: 1964-04-21
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Expires: 1980-11-09
Abstract
No abstract record available.
Inventors
- 👤 Jr John W Veil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:47
CPC Classifications
F; F27; F27D; F27D11/00; F27D11/08; B; B22; B22D; B22D11/00; B22D11/08; B22D11/081; B22D11/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A MOLD FOR ELECTRIC ARC CASTING OF AN INGOT COMPRISING, A VERTICALLY EXTENDING WALL FORMING AN OPENED END MOLD CAVITY, A BASE FOR RECEIVING SAID WALL AND FORMING A CLOSURE AT THE BOTTOM OF SAID MOLD CAVITY, A HOLE IN SAID BASE FORMING AN OPENING THROUGH SAID BASE COMMUNICATING WITH SAID CAVITY, A PLUG IN SAID HOLE EXTENDING, AT
Claim 2
Dependent Claim
59 words
A MOLD FOR ELECTRIC ARC CASTING OF AN INGOT COMPRISING, A VERTICALLY EXTENDING WALL FORMING AN OPENED END MOLD CAVITY, A BASE FOR RECEIVING SAID WALL AND FORMING A CLOSURE AT THE BOTTOM OF SAID MOLD CAVITY, A HOLE IN SAID BASE FORMING AN OPENING THROUGH SAID BASE COMMUNICATING WITH SAID CAVITY, A PLUG IN SAID HOLE EXTENDING, AT
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |