US2534280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: Electrolux Corp
•
Filing: 1946-07-02
•
Granted: 1950-12-19
•
Expires: 1966-07-02
Abstract
No abstract record available.
Inventors
- 👤 Gustaf E Lofgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:12
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1481; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/19; Y; Y10; Y10S; Y10S55/00; Y10S55/34; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1021; Y10T292/1043; Y10T292/1075; Y10T292/1082; Y10T292/28; Y10T292/2935; Y10T292/294
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1219756A
Cited
FR590296A
Cited
US2192224A
Cited
US2172180A
Cited
US2174443A
Cited
US2226630A
Cited
US2372944A
Cited
US2337936A
Cited
US2400558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |