US2583886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-driven toothbrush with demountably supported rotary brushes
Assignee: Individual
•
Filing: 1947-10-17
•
Granted: 1952-01-29
•
Expires: 1967-10-17
Abstract
No abstract record available.
Inventors
- 👤 Alvin J Schlegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:23
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/16; A61C17/22; A61C17/32; A61C17/34; A61C17/349; A61C17/24; A61C17/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1172792A
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US1340093A
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US1434436A
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US1503050A
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US1510116A
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US1620994A
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FR631543A
Cited
FR656246A
Cited
US1901503A
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US2044344A
Cited
US2124145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |