US3588936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric toothbrush
Assignee: Individual
•
Filing: 1969-05-13
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Granted: 1971-06-29
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Expires: 1989-05-13
Abstract
Abstract AN ELECTRIC CORDLESS TOOTHBRUSHING DEVICE HAVING A POWER HANDLE WITH A DRIVE SHAFT EXTENDING FROM ONE END THEREOF AND A TOOTHBRUSH ATTACHMENT WHICH IS SECURABLE TO THE REMOTE END OF SAID SHAFT. THE POWER HANDLE INCLUDES A BATTERY POWERED MOTOR WHICH BY MEANS OF A MOTION CONVERTING MECHANISM DRIVES THE SHAFT SO THAT THE ROTARY POWER OF THE MOTOR IS TRANSLATED TO AN ORBITAL MOTION AT THE TOOTHBRUSH ATTACHMENT. AN IMPROVED ELECTRIC SWITCH IS PROVIDED TO CONTROL THE ENERGIZATION OF THE MOTOR.
Inventors
- 👤 John P Duve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:51
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/16; A61C17/22; A61C17/32; A61C17/34; A61C17/3409; A61C17/3472; A61C17/3418; A61C17/3445; A61C2204/00; A61C2204/002; B; B29; B29L; B29L2031/00; B29L2031/42; B29L2031/425; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/1804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |