US2571125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom opening suction cleaner
Assignee: Electrolux Corp
•
Filing: 1947-06-20
•
Granted: 1951-10-16
•
Expires: 1967-06-20
Abstract
No abstract record available.
Inventors
- 👤 John T Ferraris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:33
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; Y; Y10; Y10S; Y10S55/00; Y10S55/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2022250A
Cited
US2192224A
Cited
US2117368A
Cited
DE692984C
Cited
US2436159A
Cited
US2388280A
Cited
US2447500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |