Patent US2960712A successfully refreshed from Google Patents.
US2960712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary tooth cleaning device
Assignee: Individual
•
Filing: 1956-01-26
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Granted: 1960-11-22
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Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Hayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:59
CPC Classifications
A; A61; A61C; A61C17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1649052A
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US1854626A
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US2206726A
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US2306264A
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US2536216A
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US2586567A
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US2664582A
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US2656559A
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US2680261A
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US2708351A
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US2752682A
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US2794265A
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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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |