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US2426388A
Expired / Lapsed
US
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Dental impression tray
Assignee: Individual
•
Filing: 1944-06-06
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Granted: 1947-08-26
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Expires: 1964-06-06
Abstract
No abstract record available.
Inventors
- 👤 Browning O Chartrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:41
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/0006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US720105A
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US1044614A
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US1054999A
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US1094203A
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US1104662A
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US1563955A
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US1461209A
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US1499973A
Cited
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Cited
US2118980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |