US2486619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic fan for suction cleaners
Assignee: Hoover Co
•
Filing: 1946-09-07
•
Granted: 1949-11-01
•
Expires: 1966-09-07
Abstract
No abstract record available.
Inventors
- 👤 Charles G Troxler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:34
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US578860A
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US966428A
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US1495222A
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GB365991A
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US1895488A
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GB414593A
Cited
US2172180A
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US2139112A
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US2211102A
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US2318950A
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US2390021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |