Patent US2454847A successfully refreshed from Google Patents.
US2454847A
Expired / Lapsed
US
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Mold, mold charging, and molding process
Assignee: H D Justi & Son Inc
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Filing: 1944-04-29
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Granted: 1948-11-30
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Expires: 1964-04-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred A Slack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:39
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/08; A61C13/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1964687A
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US2196258A
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FR837831A
Cited
GB514830A
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US2333059A
Cited
US2345305A
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US2377128A
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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) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |