Patent US2475808A successfully refreshed from Google Patents.
US2475808A
Expired / Lapsed
US
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Self-contained suction cleaner
Assignee: Individual
•
Filing: 1945-09-24
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Granted: 1949-07-12
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Expires: 1965-09-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick K Storm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:04
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/12; A47L9/127; A47L5/00; A47L5/12; A47L5/14; A47L5/22; A47L5/28; A47L5/30; Y; Y10; Y10S; Y10S55/00; Y10S55/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
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US1742671A
Cited
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Cited
US1999667A
Cited
US2221746A
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US2167786A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |