Patent US2552631A successfully refreshed from Google Patents.
US2552631A
Expired / Lapsed
US
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Floor cleaning and polishing device
Assignee: Individual
•
Filing: 1948-04-12
•
Granted: 1951-05-15
•
Expires: 1968-04-12
Abstract
No abstract record available.
Inventors
- 👤 Jilbert Stanley William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:54
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/28; A47L13/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US548236A
Cited
US668874A
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US1236215A
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US1283906A
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US1557127A
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US1630222A
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US1852198A
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US2105709A
Cited
US2284720A
Cited
US2304257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |