Patent US2492559A successfully refreshed from Google Patents.
US2492559A
Expired / Lapsed
US
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Fastener
Assignee: Individual
•
Filing: 1947-07-19
•
Granted: 1949-12-27
•
Expires: 1967-07-19
Abstract
No abstract record available.
Inventors
- 👤 George F Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:18
CPC Classifications
D; D06; D06F; D06F53/00; D06F53/04; Y; Y10; Y10T; Y10T24/00; Y10T24/23; Y10T24/40; Y10T24/4079; Y10T24/4084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US479934A
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US590401A
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US602694A
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US688503A
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FR320755A
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US963130A
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US1511690A
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US1528551A
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US1716052A
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US1892422A
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US2046771A
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US2241029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |