US2564467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: Electrolux Corp
•
Filing: 1945-09-22
•
Granted: 1951-08-14
•
Expires: 1965-09-22
Abstract
No abstract record available.
Inventors
- 👤 George H Cranmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:54
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)
DE515927C
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US1233408A
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US1402559A
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US1797409A
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US2022249A
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US2070674A
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GB469379A
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US2218169A
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US2325820A
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US2290597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |