US2641330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: Electrolux Corp
•
Filing: 1950-01-25
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Granted: 1953-06-09
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Expires: 1970-01-25
Abstract
No abstract record available.
Inventors
- 👤 Lofgren Gustaf Einar
- 👤 Robert C Lampe
- 👤 John T Ferraris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:37
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1481; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/19; A47L9/28; A47L9/2805; A47L9/2821; A47L9/2836; A47L9/2842; A47L9/2889
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |