US2415925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanding forming punch
Assignee: JULIAN T LETT
•
Filing: 1945-04-20
•
Granted: 1947-02-18
•
Expires: 1965-04-20
Abstract
No abstract record available.
Inventors
- 👤 Lee M Wiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:45
CPC Classifications
B; B31; B31B; B31B70/00; B31B50/00; B31B50/59; B31B50/592; B31B2160/00; B31B2160/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US857123A
Cited
US1549868A
Cited
US1553504A
Cited
CH138612A
Cited
US2118080A
Cited
US2337581A
Cited
US2278299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |