Patent US3411209A successfully refreshed from Google Patents.
US3411209A
Expired / Lapsed
US
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Motorized dental handpiece and control therefor
Assignee: Sybron Transition Corp
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Filing: 1964-07-30
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Granted: 1968-11-19
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Expires: 1984-07-30
Abstract
No abstract record available.
Inventors
- 👤 Stemler Joseph
- 👤 Kenneth G Slotkowski
- 👤 John E Sargeant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:23
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; A; A61; A61C; A61C1/00; A61C1/0007; A61C1/0015; A61C1/02; A61C1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2396007A
Cited
US2876015A
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US3213537A
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US3209457A
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US3101542A
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US3229369A
Cited
US3210847A
Cited
US3280458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |