Patent US5060470A successfully refreshed from Google Patents.
US2498098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction cleaner
Assignee: Hoover Co
•
Filing: 1945-06-23
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Granted: 1950-02-21
•
Expires: 1965-06-23
Abstract
No abstract record available.
Inventors
- 👤 Louis E Segesman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:21
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US971013A
Cited
US1295711A
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US1864622A
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US1946665A
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US1933105A
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US2022249A
Cited
US2192357A
Cited
DE700388C
Cited
US2286421A
Cited
US2304309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |