US2878562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forging
Assignee: ROCHESTER MACHINE CORP
•
Filing: 1953-07-28
•
Granted: 1959-03-24
•
Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 Sr James H Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:59
CPC Classifications
B; B21; B21J; B21J5/00; B21J5/06; B21J5/08
Claims Analysis
Total Claims: 0
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US2509783A
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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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |