US2815523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tar mop
Assignee: Individual
•
Filing: 1952-08-12
•
Granted: 1957-12-10
•
Expires: 1972-08-12
Abstract
No abstract record available.
Inventors
- 👤 Wilbert E Fink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:56
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)
US121955A
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US277097A
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US1073612A
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GB122891A
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US1430988A
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US1645043A
Cited
GB222655A
Cited
US1576203A
Cited
US2122164A
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US2658802A
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US2671922A
Cited
US2724138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |