Patent US3217213A successfully refreshed from Google Patents.
US3217213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor diode construction with heat dissipating housing
Assignee: Slater Electric Inc
•
Filing: 1961-06-02
•
Granted: 1965-11-09
•
Expires: 1981-06-02
Abstract
No abstract record available.
Inventors
- 👤 Saul I Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:53
CPC Classifications
H; H10; H10W; H10W72/00; H10W40/00; H10W40/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A SEMICONDUCTOR DIODE COMPRISING A HOLLOW HEAT CONDUCTIVE OUTER CASING, A HEAT CONDUCTIVE BASE FOR MOUNTING A SEMICONDUCTOR ELEMENT FORMED BY A MOUNTING SURFACE AND A DEPENDING WALL WHICH FORMS A CONCAVE SPACE, SAID BASE BEING MOUNTED AT ONE END OF SAID CASING WITH THE WALL IN CONTACT WITH SAID CASING AND THE CONCAVE SURFACE FACING TOWARD SAID ONE END OF SAID CASING, COMMUNICATING NOTCHES IN SAID DEPENDING WALL OF SAID BASE AND IN SAID CASING TO FACILITATE THE PASSAGE OF AIR THROUGH THE SPACE FORMED BY SAID CONCAVE SURFACE, AND A SEMICONDUCTOR ELEMENT MOUNTED ON AND ELECTRICALLY CONNECTED TO SAID BASE MOUNTING SURFACE ON THE SIDE OF SAID MOUNTING SURFACE OPPOSITE SAID CONCAVE SPACE.
Claim 2
Dependent Claim
115 words
A SEMICONDUCTOR DIODE COMPRISING A HOLLOW HEAT CONDUCTIVE OUTER CASING, A HEAT CONDUCTIVE BASE FOR MOUNTING A SEMICONDUCTOR ELEMENT FORMED BY A MOUNTING SURFACE AND A DEPENDING WALL WHICH FORMS A CONCAVE SPACE, SAID BASE BEING MOUNTED AT ONE END OF SAID CASING WITH THE WALL IN CONTACT WITH SAID CASING AND THE CONCAVE SURFACE FACING TOWARD SAID ONE END OF SAID CASING, COMMUNICATING NOTCHES IN SAID DEPENDING WALL OF SAID BASE AND IN SAID CASING TO FACILITATE THE PASSAGE OF AIR THROUGH THE SPACE FORMED BY SAID CONCAVE SURFACE, AND A SEMICONDUCTOR ELEMENT MOUNTED ON AND ELECTRICALLY CONNECTED TO SAID BASE MOUNTING SURFACE ON THE SIDE OF SAID MOUNTING SURFACE OPPOSITE SAID CONCAVE SPACE.
References Cited (Backward Citations)
US2677793A
Cited
US2862152A
Cited
US2830920A
Cited
US2853661A
Cited
GB851751A
Cited
US2917686A
Cited
US3030557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |