Patent US2640215A successfully refreshed from Google Patents.
US2640215A
Expired / Lapsed
US
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Fountain toothbrush
Assignee: WILLIAM H MCGHEE
•
Filing: 1945-11-29
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Granted: 1953-06-02
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Expires: 1965-11-29
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Borsini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:24
CPC Classifications
A; A46; A46B; A46B11/00; A46B11/001; A46B11/002; A46B11/0041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1391282A
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US1561140A
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US1764130A
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US1953296A
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US2081792A
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US2103083A
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US2134934A
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US2154209A
Cited
US2219753A
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US2311760A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |