US2978725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylindrical brush
Assignee: Fuller Brush Co Inc
•
Filing: 1957-05-20
•
Granted: 1961-04-11
•
Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Henry B Whitman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:10
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/001; A46B13/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US619134A
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US1309695A
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US743195A
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US2372933A
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US2653340A
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US2736916A
Cited
US2714738A
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US2762073A
Cited
US2767418A
Cited
US2721348A
Cited
US2673440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |