US2443814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forging apparatus
Assignee: Joy Manufacturing Co
•
Filing: 1942-06-08
•
Granted: 1948-06-22
•
Expires: 1962-06-08
Abstract
No abstract record available.
Inventors
- 👤 John C Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:16
CPC Classifications
B; B21; B21K; B21K5/00; B21K5/02; B21K5/06; B21J; B21J7/00; B21J7/20; B21J7/22; B21J7/28; B21J7/32; B21J7/34
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |