US2681001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charcoal planker
Assignee: Individual
•
Filing: 1950-10-23
•
Granted: 1954-06-15
•
Expires: 1970-10-23
Abstract
No abstract record available.
Inventors
- 👤 Evelyn C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:11
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; A47J37/07; A47J37/0704; A47J37/0611; A47J2037/0617
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1010981A
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US1040916A
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US1300504A
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US1661294A
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US1712474A
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US1880205A
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FR770794A
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US2168604A
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US2199303A
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US2297825A
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US2423963A
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US2576028A
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US2542109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |