US2779255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for manufacturing vacuum cleaner dust containers
Assignee: Electrolux Corp
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Filing: 1953-09-18
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Granted: 1957-01-29
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Expires: 1973-09-18
Abstract
No abstract record available.
Inventors
- 👤 Murray P Clark
- 👤 Anderson Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:46
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/84; B31B70/85; B31B2160/00; B31B2160/10; B31B2241/00; B31B2241/008; Y; Y10; Y10S; Y10S493/00; Y10S493/962; Y10S55/00; Y10S55/05
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) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |