US2605490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush
Assignee: AMERICAN FLOOR SURFACING MACH
•
Filing: 1948-10-20
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Granted: 1952-08-05
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Expires: 1968-10-20
Abstract
No abstract record available.
Inventors
- 👤 Francis D Dolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:23
CPC Classifications
A; A46; A46B; A46B3/00; A46B3/08; A46B3/10; A46B3/14; A46B9/00; A46B9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US744370A
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FR400634A
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US968820A
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GB191012913A
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US1160613A
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GB191319956A
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US1405938A
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US1439109A
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US1460883A
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US1746784A
Cited
FR717500A
Cited
US2039903A
Cited
US2146624A
Cited
US2153207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |