US2738534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mop head
Assignee: SILVER CHAMBERLIN CO Inc
•
Filing: 1950-01-13
•
Granted: 1956-03-20
•
Expires: 1970-01-13
Abstract
No abstract record available.
Inventors
- 👤 Frie Vermont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:47
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US58703A
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US949679A
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US1131348A
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US1420639A
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US1471942A
Cited
US1573686A
Cited
US2004804A
Cited
US2201732A
Cited
US2304961A
Cited
US2318087A
Cited
US2492232A
Cited
US2626415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |