Patent US2696017A successfully refreshed from Google Patents.
US2696017A
Expired / Lapsed
US
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Manually operated rotary brush for vacuum cleaner hose nozzles
Assignee: Individual
•
Filing: 1950-08-09
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Granted: 1954-12-07
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Expires: 1970-08-09
Abstract
No abstract record available.
Inventors
- 👤 Lois W Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:42
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L9/0405; A47L9/0422; A47L11/00; A47L11/02; A47L11/20; A47L11/202; A47L11/40; A47L11/4013; A47L11/4036; A47L11/4041; A47L11/4063; A47L11/4069; A47L11/4094; A47L9/0427; A47L9/0444; A47L9/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US610603A
Cited
US804213A
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US878432A
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US1104977A
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US1745355A
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US2178917A
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US2184441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |