US2957511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated core forming machine
Assignee: Reliance Electric and Engineering Co
•
Filing: 1956-02-03
•
Granted: 1960-10-25
•
Expires: 1976-02-03
Abstract
No abstract record available.
Inventors
- 👤 Stephen J Reif
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:52
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F27/00; H01F27/24; H01F27/245; H01F27/2455; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US173120A
Cited
US1319608A
Cited
US2287933A
Cited
US2523071A
Cited
US2446824A
Cited
US2465705A
Cited
US2474528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |