US3566458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of encapsulating a transistor
Assignee: Sprague Electric Co
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Filing: 1968-05-22
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Granted: 1971-03-02
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Expires: 1988-05-22
Abstract
Abstract THE METHOD OF ENCAPSULATING A TRANSISTOR INVOLVING MOUNTING A TRANSISTOR TO THE LEAD POSTS OF A HEADER. THE HEADER IS A PLURALITY OF LEAD POSTS FIXED IN POSITION BY A FIRST INSULATIVE MATERIAL. ENCAPSULATING THE TRANSISTOR IN A SECOND INSULATIVE MATERIAL AND SELECTIVELY SOLVENT REMOVING THE FIRST INSULATIVE MATERIAL.
Inventors
- 👤 Attillio O'cone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:29
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/01; H10W72/00; H10W72/20; H10W70/00; H10W70/40; H10W70/421; H10W70/435; H10W72/50; H10W72/531; H10W72/5363; H10W74/40; H10W74/47; H10W90/00; H10W90/701; H10W90/751; H10W90/753; H10W90/754; H10W90/756; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169; Y10T29/49171; Y10T29/49172
Claims Analysis
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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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |