US2964777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner and cordwinder combination
Assignee: Electrolux Corp
•
Filing: 1957-03-20
•
Granted: 1960-12-20
•
Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Oliver L Allen
- 👤 Michael E Belicka
- 👤 Gustaf E Lofgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:36
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1260626A
Cited
US1960922A
Cited
US2323275A
Cited
US2348966A
Cited
US2375917A
Cited
US2848731A
Cited
GB733530A
Cited
US2794513A
Cited
US2825924A
Cited
US2825087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |