Patent US2547805A successfully refreshed from Google Patents.
US2547805A
Expired / Lapsed
US
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Vacuum cleaner dust bag
Assignee: Electrolux Corp
•
Filing: 1945-04-11
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Granted: 1951-04-03
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Expires: 1965-04-11
Abstract
No abstract record available.
Inventors
- 👤 Arnold H Beede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:33
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1427; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/4494
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1224842A
Cited
US1727921A
Cited
US1805174A
Cited
US2040271A
Cited
US2272394A
Cited
US2158955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |