Patent US2709227A successfully refreshed from Google Patents.
US2709227A
Expired / Lapsed
US
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Electric tooth brush
Assignee: Individual
•
Filing: 1952-02-20
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Granted: 1955-05-24
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Expires: 1972-02-20
Abstract
No abstract record available.
Inventors
- 👤 Theo L Foley
- 👤 John W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:56
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/16; A61C17/22; A61C17/32; A61C17/34; A61C17/3409; A61C17/3436; H; H02; H02K; H02K33/00; H02K33/02; H02K33/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US942206A
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US1591586A
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US1734281A
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US1832519A
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US1825353A
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US2095956A
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US2278365A
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US2227276A
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US2319205A
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US2512499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |