US2688147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush
Assignee: NEWARK BRUSH Co
•
Filing: 1951-10-05
•
Granted: 1954-09-07
•
Expires: 1971-10-05
Abstract
No abstract record available.
Inventors
- 👤 Niels E Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:16
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/001; A46B13/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US955738A
Cited
US1817176A
Cited
GB352737A
Cited
US1903520A
Cited
US2136103A
Cited
US2106610A
Cited
US2525947A
Cited
US2534892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |