US2615306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forging apparatus and control thereof
Assignee: Chambersburg Engineering Co
•
Filing: 1949-07-21
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Granted: 1952-10-28
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Expires: 1969-07-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Alcorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:30
CPC Classifications
B; B21; B21J; B21J7/00; B21J7/20; B21J7/46; Y; Y10; Y10S; Y10S60/00; Y10S60/911
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) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |