US42004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in apparatus for shearing, punching, and bending metals
Assignee: —
•
Filing: —
•
Granted: 1864-03-22
•
Expires: 1881-03-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:33
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/36; Y; Y10; Y10S; Y10S438/00; Y10S438/942; Y10S438/947; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17821
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) | 1867-03-22 | 1867-09-21 | 1868-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1871-03-22 | 1871-09-21 | 1872-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1875-03-22 | 1875-09-21 | 1876-03-22 | $7700.00 | Window Closed / Lapsed |