Patent US3151312A successfully refreshed from Google Patents.
US2746072A
Expired / Lapsed
US
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Water spray for washing concrete pavement
Assignee: Individual
•
Filing: 1954-04-15
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Granted: 1956-05-22
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Expires: 1974-04-15
Abstract
No abstract record available.
Inventors
- 👤 Lumpkin James Leroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:56
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/11; E; E01; E01H; E01H1/00; E01H1/10; E01H1/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1724702A
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US2061585A
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US2144890A
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US2246640A
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US2607622A
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US2638730A
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US2692163A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |