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US2955309A
Expired / Lapsed
US
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Self-wringing floor cleaning and waxing device
Assignee: Individual
•
Filing: 1958-04-14
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Granted: 1960-10-11
•
Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur K Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:57
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/14; A47L13/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US533413A
Cited
US557944A
Cited
FR411937A
Cited
US1174213A
Cited
US1442303A
Cited
US1474994A
Cited
US2518183A
Cited
US2651803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |