US2657894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive fastener support
Assignee: Illinois Tool Works Inc
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Filing: 1950-02-25
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Granted: 1953-11-03
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Expires: 1970-02-25
Abstract
No abstract record available.
Inventors
- 👤 Lester J Sklenar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/06; F16B21/08; F16B21/086; F16B19/00; F16B19/04; F16B19/08; F16B19/10; F16B19/1027; F16B19/1036; F16B19/1081; F25; F25D; F25D23/00; F25D23/06; F25D23/065; F25D23/067; F25D25/00; F25D25/02; A; A47; A47B; A47B2220/00; A47B2220/0036; A47B2220/0041; F16B2200/00; F16B2200/20; F25D2325/00; F25D2325/023; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/49876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |