US2804166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust containers for vacuum cleaners
Assignee: Electrolux Corp
•
Filing: 1953-05-11
•
Granted: 1957-08-27
•
Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Henry W Stevens
- 👤 Lofgren Gustaf Einar
- 👤 Raymond L Brown
- 👤 Arnold H Beede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:07
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1738249A
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US1535800A
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US1847352A
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GB257711A
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US1810613A
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GB527228A
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US2225389A
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US2324231A
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US2564845A
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US2596808A
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US2637409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |