US2560961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener
Assignee: Illinois Tool Works Inc
•
Filing: 1947-11-29
•
Granted: 1951-07-17
•
Expires: 1967-11-29
Abstract
No abstract record available.
Inventors
- 👤 Knohl Friedrich Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:30
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/041; F16B37/043; F16B37/12; F16B37/122; Y; Y10; Y10S; Y10S411/00; Y10S411/913; Y10S411/999
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |