US2898474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device encapsulation
Assignee: International Business Machines Corp
•
Filing: 1956-09-04
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Granted: 1959-08-04
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Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 Richard F Rutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:34
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10F; H10F99/00; H10W72/00; H10W90/00; H10W90/701; H10W90/751; H10W90/753; H10W90/754
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A SEMICONDUCTOR CIRCUIT ELEMENT COMPRISING A THERMALLY CONDUCTIVE CONTAINER, A MONOCRYSTALLINE SEMICONDUCTOR DEVICE WITHIN SAID CONTAINER AND A QUANTITY OF MESITYLENE SURROUNDING SAID SEMICONDUCTOR DEVICE AND SUBSTANTIALLY FILLING SAID CONTAINER.
Claim 2
Dependent Claim
30 words
A SEMICONDUCTOR CIRCUIT ELEMENT COMPRISING A THERMALLY CONDUCTIVE CONTAINER, A MONOCRYSTALLINE SEMICONDUCTOR DEVICE WITHIN SAID CONTAINER AND A QUANTITY OF MESITYLENE SURROUNDING SAID SEMICONDUCTOR DEVICE AND SUBSTANTIALLY FILLING SAID CONTAINER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |