US2642151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner with bag ejector
Assignee: Electrolux Corp
•
Filing: 1951-05-11
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Granted: 1953-06-16
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Expires: 1971-05-11
Abstract
No abstract record available.
Inventors
- 👤 Leon P Borkoski
- 👤 Robert C Lampe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:55
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1481; 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)
US254467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |