Patent US2758329A successfully refreshed from Google Patents.
US2758329A
Expired / Lapsed
US
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Suction cleaner and converter facility therefor
Assignee: Hoover Co
•
Filing: 1951-09-01
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Granted: 1956-08-14
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Expires: 1971-09-01
Abstract
No abstract record available.
Inventors
- 👤 George A Brace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:03
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L5/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2330665A
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US2189379A
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US2174595A
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US2366125A
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US2378587A
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US2416786A
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US2450846A
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US2450828A
Cited
US2653343A
Cited
US2584495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |