US2715743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wringer type sponge mop
Assignee: Individual
•
Filing: 1951-06-19
•
Granted: 1955-08-23
•
Expires: 1971-06-19
Abstract
No abstract record available.
Inventors
- 👤 Olof G Ljungdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:34
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/14; A47L13/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US603999A
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GB189520332A
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US1538740A
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DE637458C
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US2153601A
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US2251384A
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US2358673A
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US2486102A
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US2646587A
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BE494899A
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US2596026A
Cited
DE216565C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |