US3457471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor diodes of the junction type having a heat sink at the surface nearer to the junction
Assignee: MA Com Inc
•
Filing: 1966-10-10
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Granted: 1969-07-22
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 William J Moroney
- 👤 Henri R Chalifour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:05
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/10; H10D; H10D99/00; H10W72/00; H10W72/50; H10W72/531; H10W72/5363
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2854610A
Cited
US2956214A
Cited
US3025439A
Cited
US3201664A
Cited
US3300841A
Cited
US3375417A
Cited
US3283218A
Cited
US3319135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |