US2254558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening element and method of making same
Assignee: Individual
•
Filing: 1938-10-10
•
Granted: 1941-09-02
•
Expires: 1958-10-10
Abstract
No abstract record available.
Inventors
- 👤 Ivan A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:09
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/03; B21D39/035; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/1459; Y10T24/1461; Y10T24/1463; Y10T24/1469; Y10T24/148; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49908; Y10T29/49936; Y10T403/00; Y10T403/49; Y10T403/71
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-09-01 | 1945-03-03 | 1945-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-09-01 | 1949-03-03 | 1949-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-09-01 | 1953-03-03 | 1953-09-02 | $7700.00 | Window Closed / Lapsed |