Patent US2862413A successfully refreshed from Google Patents.
US2862413A
Expired / Lapsed
US
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Self threading sheet metal fastener for retaining soft material
Assignee: Illinois Tool Works Inc
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Filing: 1956-05-16
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Granted: 1958-12-02
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Expires: 1976-05-16
Abstract
No abstract record available.
Inventors
- 👤 Knohl Friedrich Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:39
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/20; Y; Y10; Y10S; Y10S411/00; Y10S411/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US913024A
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US1582530A
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US1963535A
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US2284081A
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US2367790A
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US2408573A
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US2484192A
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US2743461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |