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US2591250A
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Suction cleaner with self-retracting electrical cord
Assignee: Hoover Co
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Filing: 1947-11-18
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Granted: 1952-04-01
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Expires: 1967-11-18
Abstract
No abstract record available.
Inventors
- 👤 Dale C Gerber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:02
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/24; A47L9/242; A47L9/246; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1292963A
Cited
US1355366A
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US1421597A
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US1730945A
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GB341943A
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US2206703A
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US2173096A
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US2348861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |