US2965146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw and lock washer assembly
Assignee: Illinois Tool Works Inc
•
Filing: 1956-10-24
•
Granted: 1960-12-20
•
Expires: 1976-10-24
Abstract
No abstract record available.
Inventors
- 👤 Linvell A Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:07
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/24; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957; Y10S411/959
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2108316A
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US2311299A
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US2250050A
Cited
US2257479A
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US2278689A
Cited
US2578217A
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US2634168A
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US2715929A
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US2707012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |