US2649926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means to eject dust bag from vacuum cleaner casing
Assignee: Electrolux Corp
•
Filing: 1951-04-27
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Granted: 1953-08-25
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Expires: 1971-04-27
Abstract
No abstract record available.
Inventors
- 👤 George H Cranmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:35
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1427; A47L9/1436; A47L9/1445; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/1481
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2070674A
Cited
US2444809A
Cited
CH255389A
Cited
US2564467A
Cited
US2532642A
Cited
US2567221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |