Patent US2629343A successfully refreshed from Google Patents.
US2629343A
Expired / Lapsed
US
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Brushing mechanism
Assignee: Stephen F Whitman & Son Inc
•
Filing: 1949-08-10
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Granted: 1953-02-24
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Expires: 1969-08-10
Abstract
No abstract record available.
Inventors
- 👤 Irvin B Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:12
CPC Classifications
A; A23; A23G; A23G7/00; A23G7/0006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US687542A
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FR335773A
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US809182A
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US999488A
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US1301006A
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US1275365A
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US1416196A
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US1529753A
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FR539527A
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US1542347A
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US2018418A
Cited
US2183033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |