US2618853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centering device for use in denture manufacture
Assignee: Individual
•
Filing: 1950-04-06
•
Granted: 1952-11-25
•
Expires: 1970-04-06
Abstract
No abstract record available.
Inventors
- 👤 Singer Harold
- 👤 Margaretten Marcus
- 👤 Hansen Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:54
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/04; A61C19/05; A61C19/052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1344261A
Cited
US2433815A
Cited
US2135803A
Cited
US2212116A
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US2414029A
Cited
US2486347A
Cited
US2507118A
Cited
US2618854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |