US2531351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
T-head molding fastener with tensioning member
Assignee: United Carr Fastener Corp
•
Filing: 1946-10-08
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Granted: 1950-11-21
•
Expires: 1966-10-08
Abstract
No abstract record available.
Inventors
- 👤 Wilmer H Churchill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:25
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/12; F16B5/123; F16B5/125; F16B33/00; F16B33/002; F16B35/00; F16B35/04; F16B35/041; F16B35/048; F16B37/00; F16B37/04; F16B37/06; F16B37/062; F16B37/065; F16B5/128; Y; Y10; Y10T; Y10T24/00; Y10T24/30; Y10T24/301
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2105706A
Cited
US2156669A
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US2148847A
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US2198186A
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US2180925A
Cited
US2216219A
Cited
US2278627A
Cited
US2473400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |