Patent US2649606A successfully refreshed from Google Patents.
US2649606A
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US
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Toolholder for tank type vacuum cleaners
Assignee: Electrolux Corp
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Filing: 1949-03-04
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Granted: 1953-08-25
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Expires: 1969-03-04
Abstract
No abstract record available.
Inventors
- 👤 Glenn R Fadner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:41
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/0009; A47L9/0018; A47L9/0027; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB337319A
Cited
GB431014A
Cited
US2248585A
Cited
FR894841A
Cited
US2293859A
Cited
US2450172A
Cited
US2534122A
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 |