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US2818647A
Expired / Lapsed
US
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Dental instrument
Assignee: Individual
•
Filing: 1954-11-22
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Granted: 1958-01-07
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Expires: 1974-11-22
Abstract
No abstract record available.
Inventors
- 👤 Berliner Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:50
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/022; A61C19/00; A61C19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2552134A
Cited
US2685737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |