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US2639040A
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Assignee: Individual
•
Filing: 1951-08-01
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Granted: 1953-05-19
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Expires: 1971-08-01
Abstract
No abstract record available.
Inventors
- 👤 Emmett E Tapley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:17
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/0043; A47F5/0068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1270718A
Cited
US1807517A
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US1878864A
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US2090176A
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US2077892A
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US2197870A
Cited
US2539923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |