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Patent US2721348A successfully refreshed from Google Patents.
US2721348A
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Rotary brush
Assignee: MOTO MOWER Co
•
Filing: 1951-10-06
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Granted: 1955-10-25
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Expires: 1971-10-06
Abstract
No abstract record available.
Inventors
- 👤 Harold L Blydenburgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:48
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/001; A46B13/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1314967A
Cited
US1011831A
Cited
GB306835A
Cited
US1915817A
Cited
US2398241A
Cited
US2450679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |