Patent US2757439A successfully refreshed from Google Patents.
US2757439A
Expired / Lapsed
US
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Transistor assemblies
Assignee: Raytheon Co
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Filing: 1955-02-25
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Granted: 1956-08-07
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Expires: 1975-02-25
Abstract
No abstract record available.
Inventors
- 👤 Lloyd E Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:29
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/111; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169; Y10T29/49171; Y10T29/49172
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE METHOD OF CONSTRUCTING A SEMICONDUCTIVE DEVICE, SAID METHOD COMPRISING MOUNTING A SEMICONDUCTOR BODY ON A SET OF LEAD WIRES, INSULATEDLY INSERTING SAID LEAD WIRES IN A STEM BASE, PLACING SAID STEM BASE AND ATTACHED ELEMENT INTO A MOLD CAVITY WITH SAID STEM BASE PLUGGING ONE END OF SAID CAVITY, SEALING SAID CAVITY WITH AN ENCAPSULATING MATERIAL, CAUSING SAID MATERIAL TO HARDEN WHEREBY A PROTECTIVE HOUSING IS FORMED AROUND SAID LEADS AND SAID BODY, AND REMOVING SAID STEM BASE.
Claim 2
Independent Claim
79 words
THE METHOD OF CONSTRUCTING A SEMICONDUCTIVE DEVICE, SAID METHOD COMPRISING MOUNTING A SEMICONDUCTOR BODY ON A SET OF LEAD WIRES, INSULATEDLY INSERTING SAID LEAD WIRES IN A STEM BASE, PLACING SAID STEM BASE AND ATTACHED ELEMENT INTO A MOLD CAVITY WITH SAID STEM BASE PLUGGING ONE END OF SAID CAVITY, SEALING SAID CAVITY WITH AN ENCAPSULATING MATERIAL, CAUSING SAID MATERIAL TO HARDEN WHEREBY A PROTECTIVE HOUSING IS FORMED AROUND SAID LEADS AND SAID BODY, AND REMOVING SAID STEM BASE.
References Cited (Backward Citations)
US2586609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |