US2859394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabrication of semiconductor devices
Assignee: GTE Sylvania Inc
•
Filing: 1953-02-27
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Granted: 1958-11-04
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Expires: 1973-02-27
Abstract
No abstract record available.
Inventors
- 👤 Berman Irvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:45
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/161; H10W72/00; Y; Y10; Y10S; Y10S228/00; Y10S228/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A SEMICONDUCTOR DEVICE INCLUDING POINT-CONTACT AND SEMICONDUCTOR ELEMENTS SUPPORTED WITHIN A SEALED GLASS ENVELOPE, A SUPPORT OF A GLASS-TO-METAL SEALING ALLOY FOR SAID SEMICONDUCTOR ELEMENT, AND A BRAZING LAYER OF ANTIMONY BONDING SAID SEMICONDUCTOR ELEMENT AND SUPPORT TOGETHER.
Claim 2
Dependent Claim
38 words
A SEMICONDUCTOR DEVICE INCLUDING POINT-CONTACT AND SEMICONDUCTOR ELEMENTS SUPPORTED WITHIN A SEALED GLASS ENVELOPE, A SUPPORT OF A GLASS-TO-METAL SEALING ALLOY FOR SAID SEMICONDUCTOR ELEMENT, AND A BRAZING LAYER OF ANTIMONY BONDING SAID SEMICONDUCTOR ELEMENT AND SUPPORT TOGETHER.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |