Patent US2804637A successfully refreshed from Google Patents.
US2804637A
Expired / Lapsed
US
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Sweeping brush with frictionally adjustable handle
Assignee: Individual
•
Filing: 1954-11-03
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Granted: 1957-09-03
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Expires: 1974-11-03
Abstract
No abstract record available.
Inventors
- 👤 Frank S Antozak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:39
CPC Classifications
A; A46; A46B; A46B5/00; A46B5/002; A46B5/0054; A46B5/0058; A46B17/00; A46B17/08; A46B5/0075; A46B5/0083; B; B25; B25G; B25G3/00; B25G3/38; A46B2200/00; A46B2200/30; A46B2200/302; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32418
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US163536A
Cited
US1428263A
Cited
GB198821A
Cited
US1444416A
Cited
US1609295A
Cited
US1871146A
Cited
DE894837C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |