US2924312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punch and die assembly for making interlocking integral fasteners
Assignee: Individual
•
Filing: 1957-12-23
•
Granted: 1960-02-09
•
Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Ivan A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:12
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/03; B21D39/035; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49908; Y10T29/49915; Y10T29/49936; Y10T29/49938; Y10T403/00; Y10T403/49; Y10T403/4974; Y10T403/71
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) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |