US1920155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core forming machine for electrical apparatus and method of making cores
Assignee: General Electric Co
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Filing: 1932-10-26
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Granted: 1933-07-25
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Expires: 1952-10-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:23
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/02; H02K15/021; H02K15/026; B; B21; B21D; B21D28/00; B21D28/02; B21D28/22; Y; Y10; Y10S; Y10S72/00; Y10S72/701; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
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) | 1936-07-24 | 1937-01-23 | 1937-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-24 | 1941-01-23 | 1941-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-24 | 1945-01-23 | 1945-07-25 | $7700.00 | Window Closed / Lapsed |