US3820237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for packaging light emitting devices
Assignee: Nortel Networks Ltd
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Filing: 1972-06-26
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Granted: 1974-06-28
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Expires: 1992-06-26
Abstract
Abstract A PACKAGE FOR A LIGHT EMITTING DEVICE IS FABRICATED FROM A LEAD FRAME STRUCTURE HAVING A PAIR OF ELECTRODES. THE END OF ONE OF THE ELECTRODES OF THE LEAD FRAME IS SHAPED CONCAVELY TO FORM A REFLECTOR HAVING A PREDETERMINED SHAPE. A SEMICONDUCTOR ELEMENT IS BONDED TO THE INTERIOR SURFACE OF THE REFLECTOR AND ELECTRICALLY CONNECTED BY A WIRE TO ONE END OF THE OTHER ELECTRODE. THE ENDS OF THE TWO ELECTRODES ARE MECHANICALLY SECURED TOGETHER IN SPACED RELATIONSHIP BY A TRANSPARENT ENCAPSULATING SUBSTANCE WHICH ALSO FORMS THE LENS FOR THE DEVICE.
Inventors
- 👤 D Effer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:07
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/857; H10H20/855; H10H20/856; H10H20/852; H10H20/853; H10W; H10W90/00; H10W90/701; H10W90/751; H10W90/756
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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |