Patent US2564468A successfully refreshed from Google Patents.
US2564468A
Expired / Lapsed
US
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Vacuum cleaner
Assignee: Electrolux Corp
•
Filing: 1946-02-15
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Granted: 1951-08-14
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Expires: 1966-02-15
Abstract
No abstract record available.
Inventors
- 👤 Anderson Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:49
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1481; A47L9/19; A47L9/28; A47L9/2836; A47L9/2842; A47L9/2857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US980944A
Cited
US1887601A
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US2192224A
Cited
US2172180A
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US2293518A
Cited
US2317865A
Cited
US2300705A
Cited
DK64175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |