US3560903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic coil construction
Assignee: Individual
•
Filing: 1969-01-30
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Granted: 1971-02-02
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Expires: 1989-01-30
Abstract
Abstract AN ELECTROMAGNETIC COIL CONSTRUCTION IS DESIRED IN WHICH THE COMPONENT ELEMENTS COMPRISE A BOBBIN OF THERMOPLASTIC MATERIAL AROUND WHICH THE WIRE IS WOUND. THE BASE FLANGE OF THE BOBBIN HAS A HOLLOW PORTION, THE WALL OF WHICH SUPPORTS TERMINAL INSERTS. A THERMOPLASTIC COVER OVER THIS PORTION LOCKS THE INSERTS IN PLACE. A TUBULAR SHELL PLACED OVER THE BOBBIN ENVELOPS THE WINDING. THE RIM OF THE SHELL, AS WELL AS THE RIM OF THE FLANGE, ARE TAPERED AT THE EDGE OF SONIC WELDING OF THE SHELL AND THE COVER TO THE BASE FLANGE.
Inventors
- 👤 Stephen Foldes
- 👤 Louis A Jimenez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:31
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F27/00; H01F27/02
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |