Patent US2921153A successfully refreshed from Google Patents.
US2921153A
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US
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Vacuum cleaner
Assignee: Electrolux AB
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Filing: 1958-04-01
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Granted: 1960-01-12
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Expires: 1978-04-01
Abstract
No abstract record available.
Inventors
- 👤 Descarries Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:00
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/28; A47L9/2889; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/2836; A47L9/2842; A47L9/2857; A47L9/2868; H; H01; H01H; H01H17/00; H01H3/00; H01H3/02; H01H3/16; H01R; H01R13/00; H01R13/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |