Patent US2651803A successfully refreshed from Google Patents.
US2651803A
Expired / Lapsed
US
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Pickup brushes for sweepers
Assignee: Individual
•
Filing: 1949-02-16
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Granted: 1953-09-15
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Expires: 1969-02-16
Abstract
No abstract record available.
Inventors
- 👤 James H Browne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:36
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4063; A47L11/4069; A47L11/32; A47L11/33; A47L11/4036; A47L11/4041; A47L11/4052; A47L11/4058
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US769753A
Cited
US755596A
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US1259326A
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US1525585A
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GB290641A
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FR767351A
Cited
US2036840A
Cited
US2054713A
Cited
US2073660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |