Patent US2591093A successfully refreshed from Google Patents.
US2591093A
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Rotary brush with liquid receiving and feeding chamber
Assignee: ATLAS FLOOR SURFACING MACHINERY CORP
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Filing: 1947-07-19
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Granted: 1952-04-01
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Expires: 1967-07-19
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel N Okun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:29
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A46; A46B; A46B13/00; A46B13/02; A46B13/04; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162; A47L11/1625; A47L11/4077; A47L11/408; A47L11/4088; G; G06; G06M; G06M1/00; G06M1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1577856A
Cited
US1829132A
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US1808656A
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US1948815A
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US2039356A
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US2217617A
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US2156514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |