Patent US2959804A successfully refreshed from Google Patents.
US2959804A
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US
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Vacuum cleaner end arrangement
Assignee: Mauz and Pfeiffer GmbH and Co KG
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Filing: 1957-12-24
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Granted: 1960-11-15
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Expires: 1977-12-24
Abstract
No abstract record available.
Inventors
- 👤 Faber Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:43
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/26; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; Y; Y10; Y10S; Y10S55/00; Y10S55/03
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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |