US2947013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audible tooth brush
Assignee: Individual
•
Filing: 1956-02-17
•
Granted: 1960-08-02
•
Expires: 1976-02-17
Abstract
No abstract record available.
Inventors
- 👤 Milton B Silverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:39
CPC Classifications
A; A46; A46B; A46B15/00; A46B15/0002; A46B15/0038; A46B15/004; A46B15/0042; A46B7/00; A46B7/06; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191223441A
Cited
DE555481C
Cited
US1933501A
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US2437442A
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US2501861A
Cited
US2550991A
Cited
US2677983A
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DE909688C
Cited
US2787927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |