US3252118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic induction apparatus
Assignee: Kuhlman Electric Corp
•
Filing: 1958-06-02
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Granted: 1966-05-17
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Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur V Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:10
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233; H01F41/024; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
ELECTROMAGNETIC INDUCTION APPARATUS COMPRISING AN ELECTRICAL WINDING STRUCTURE AND A MAGNETIC CORE STRUCTURE IN LINKING INTERRELATIONSHIP, SAID CORE STRUCTURE COMPRISING A PLURALITY OF WOUND, PIECED, INTERLEAVED-SPIRAL MAGNETIC STRIPS.
Claim 2
Dependent Claim
28 words
ELECTROMAGNETIC INDUCTION APPARATUS COMPRISING AN ELECTRICAL WINDING STRUCTURE AND A MAGNETIC CORE STRUCTURE IN LINKING INTERRELATIONSHIP, SAID CORE STRUCTURE COMPRISING A PLURALITY OF WOUND, PIECED, INTERLEAVED-SPIRAL MAGNETIC STRIPS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |