Patent US2477607A successfully refreshed from Google Patents.
US2477607A
Expired / Lapsed
US
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Method of forming interlocking slots in fasteners
Assignee: Individual
•
Filing: 1943-04-16
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Granted: 1949-08-02
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Expires: 1963-04-16
Abstract
No abstract record available.
Inventors
- 👤 Hungate William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:58
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49995; Y10T29/49996; Y10T409/00; Y10T409/30; Y10T409/303752
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1498231A
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US1643474A
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US1831973A
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US1955740A
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US1986329A
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US2029388A
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US2147243A
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US2109969A
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US2148577A
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US2160298A
Cited
US2242487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |