US2427409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die and punch mechanism
Assignee: Individual
•
Filing: 1945-12-12
•
Granted: 1947-09-16
•
Expires: 1965-12-12
Abstract
No abstract record available.
Inventors
- 👤 Frank K Kirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:49
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8742
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2163641A
Cited
US2355344A
Cited
US2317424A
Cited
US2323431A
Cited
US2381476A
Cited
US2364011A
Cited
US2373844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-15 | 1951-03-17 | 1951-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-15 | 1955-03-17 | 1955-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-15 | 1959-03-17 | 1959-09-16 | $7700.00 | Window Closed / Lapsed |