Patent US3881074A successfully refreshed from Google Patents.
Patent US2920334A successfully refreshed from Google Patents.
US2920334A
Expired / Lapsed
US
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Plastic brush construction
Assignee: Individual
•
Filing: 1956-07-13
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Granted: 1960-01-12
•
Expires: 1976-07-13
Abstract
No abstract record available.
Inventors
- 👤 Keller Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:36
CPC Classifications
A; A45; A45D; A45D24/00; A45D24/04; A46; A46B; A46B15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US959574A
Cited
US1567507A
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US2397471A
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US2471855A
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US2648082A
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US2651810A
Cited
FR1065687A
Cited
FR1085091A
Cited
US2741786A
Cited
US2706825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |