US2515403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back presser mop
Assignee: SPONGE PRODUCTS Corp
•
Filing: 1948-12-21
•
Granted: 1950-07-18
•
Expires: 1968-12-21
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel B Greenleaf
- 👤 Leonard C Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:17
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)
GB190206435A
Cited
GB191202504A
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US1466052A
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US1551668A
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GB396469A
Cited
GB411314A
Cited
US2199147A
Cited
US2153601A
Cited
US2165319A
Cited
US2196837A
Cited
US2288647A
Cited
US2418802A
Cited
US2442467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |