US2921329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush assembly utilizing lengths of brush strip
Assignee: Osborn Manufacturing Corp
•
Filing: 1955-09-19
•
Granted: 1960-01-19
•
Expires: 1975-09-19
Abstract
No abstract record available.
Inventors
- 👤 Ruben O Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:47
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/02; A46B13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB306834A
Cited
US2171505A
Cited
US2523823A
Cited
US2605490A
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) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |