Patent US2898622A successfully refreshed from Google Patents.
US2898622A
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US
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Combination suction cleaners
Assignee: Hoover Co
•
Filing: 1955-11-30
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Granted: 1959-08-11
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Expires: 1975-11-30
Abstract
No abstract record available.
Inventors
- 👤 Claud C Hurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:45
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)
US2266075A
Cited
US2024260A
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US2076390A
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US2210950A
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US2174560A
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GB523551A
Cited
US2605493A
Cited
US2758329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |