Patent US2560518A successfully refreshed from Google Patents.
US2560518A
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US
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Friction nut
Assignee: United Carr Fastener Corp
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Filing: 1947-03-05
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Granted: 1951-07-10
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Expires: 1967-03-05
Abstract
No abstract record available.
Inventors
- 👤 Robert R Amesbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:44
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/02; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/942
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US995893A
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US2173544A
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USRE21769E
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US2326903A
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US2328757A
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US2350315A
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US2399957A
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US2378957A
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US2408153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |