US2796907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion nut comprised of flanged outer sleeve and tapered, threaded expander thereof
Assignee: AT&T Inc
•
Filing: 1953-06-26
•
Granted: 1957-06-25
•
Expires: 1973-06-26
Abstract
No abstract record available.
Inventors
- 👤 Edward E Dumas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:06
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/041; F16B37/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US694769A
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US1038834A
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US996133A
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US1207413A
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US1842117A
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US1816970A
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US2345910A
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US2402583A
Cited
US2544304A
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GB682562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |