US2953807A
Expired / Lapsed
US
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Surface treating apparatus
Assignee: Electrolux AB
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Filing: 1957-03-25
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Granted: 1960-09-27
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Expires: 1977-03-25
Abstract
No abstract record available.
Inventors
- 👤 Nilsson Bengt Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:38
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/20; A47L11/204; A47L11/206; A47L11/4097; A47L5/00; A47L5/12; A47L5/22; A47L9/00; A47L9/22; B; B24; B24B; B24B7/00; B24B7/10; B24B7/18; B24B7/186; B24D; B24D9/00; B24D9/08; B24D9/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR566526A
Cited
US1677533A
Cited
US1999163A
Cited
US1871624A
Cited
US1999667A
Cited
US2064344A
Cited
US2291689A
Cited
GB714928A
Cited
US2782452A
Cited
FR1051466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |