Patent US1392136A successfully refreshed from Google Patents.
Patent US2929971A successfully refreshed from Google Patents.
US2929971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductive device and method of making
Assignee: US Philips Corp
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Filing: 1958-09-18
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Granted: 1960-03-22
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Expires: 1978-09-18
Abstract
No abstract record available.
Inventors
- 👤 Johannes Jacobus Asuerus P Ams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:15
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/161; H10W72/00; H10W76/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A SEMI-CONDUCTOR DEVICE COMPRISING A VACUUM-TIGHTSEALED ENVELOPE, A SEMI-CONDUCTIVE BLOCKING-LAYER SYSTEM WITHIN THE ENVELOPE, AND ARSENIC IN THE SPACE BETWEEN THE ENVELOPE AND THE BLOCKING-LAYER SYSTEM.
Claim 2
Dependent Claim
26 words
A SEMI-CONDUCTOR DEVICE COMPRISING A VACUUM-TIGHTSEALED ENVELOPE, A SEMI-CONDUCTIVE BLOCKING-LAYER SYSTEM WITHIN THE ENVELOPE, AND ARSENIC IN THE SPACE BETWEEN THE ENVELOPE AND THE BLOCKING-LAYER SYSTEM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |