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US2998554A
Expired / Lapsed
US
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Semi-conductor barrier layer system
Assignee: US Philips Corp
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Filing: 1958-03-25
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Granted: 1961-08-29
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Expires: 1978-03-25
Abstract
No abstract record available.
Inventors
- 👤 Koe Augustinus Aloysius Maria
- 👤 Johannes Jacobus Asuerus P Ams
- 👤 Haaijman Pieter Willem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:11
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/40; H10W76/42; H10W76/48; H10W72/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A SEMICONDUCTOR DEVICE COMPRISING A VACUUM-TIGHT ENVELOPE CONTAINING AN ATMOSPHERE INCLUDING WATER VAPOR, A SEMI-CONDUCTIVE BODY AND CONTACTS THERETO WITHIN SAID ENVELOPE AND EXPOSED TO THE ATMOSPHERE THEREWITHIN, SAID SEMICONDUCTIVE BODY BEING CONSTITUTED OF A MATERIAL AT WHICH IMPROVED PROPERTIES ARE EXHIBITED BY THE BODY AND CONTACTS IN A WATER VAPOR ATMOSPHERE, AND A SOURCE OF BOUND WATER VAPOR WITHIN SAID ENVELOPE AND CONTAINING SUFFICIENT WATER AND CAPABLE OF GENERATING AND ABSORBING WATER TO MAINTAIN THE WATER VAPOR ATMOSPHERE THEREWITH-
Claim 2
Dependent Claim
80 words
A SEMICONDUCTOR DEVICE COMPRISING A VACUUM-TIGHT ENVELOPE CONTAINING AN ATMOSPHERE INCLUDING WATER VAPOR, A SEMI-CONDUCTIVE BODY AND CONTACTS THERETO WITHIN SAID ENVELOPE AND EXPOSED TO THE ATMOSPHERE THEREWITHIN, SAID SEMICONDUCTIVE BODY BEING CONSTITUTED OF A MATERIAL AT WHICH IMPROVED PROPERTIES ARE EXHIBITED BY THE BODY AND CONTACTS IN A WATER VAPOR ATMOSPHERE, AND A SOURCE OF BOUND WATER VAPOR WITHIN SAID ENVELOPE AND CONTAINING SUFFICIENT WATER AND CAPABLE OF GENERATING AND ABSORBING WATER TO MAINTAIN THE WATER VAPOR ATMOSPHERE THEREWITH-
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) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |