US2451202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated magnetic core and method of making
Assignee: Power Products LLC
•
Filing: 1945-02-21
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Granted: 1948-10-12
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Expires: 1965-02-21
Abstract
No abstract record available.
Inventors
- 👤 James A Comstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:21
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/24; H01F27/245; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078; Y10T83/00; Y10T83/04; Y10T83/0524; Y10T83/0529
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1876451A
Cited
US1477359A
Cited
US1819481A
Cited
US1782521A
Cited
US1783050A
Cited
US2333995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |