Patent US2421698A successfully refreshed from Google Patents.
US2421698A
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US
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Apparatus for casting dental restorations
Assignee: Individual
•
Filing: 1946-01-04
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Granted: 1947-06-03
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Expires: 1966-01-04
Abstract
No abstract record available.
Inventors
- 👤 Hordes Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:18
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/0003; A61C13/20; A61C13/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1307299A
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US1541869A
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US1387558A
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US1724691A
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US1765109A
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US2279952A
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US2334078A
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US2359152A
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US2397264A
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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) | 1950-06-02 | 1950-12-02 | 1951-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-02 | 1954-12-02 | 1955-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-02 | 1958-12-02 | 1959-06-03 | $7700.00 | Window Closed / Lapsed |