US3304362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass-to-metal seals in electronic devices
Assignee: Inland Electronic Products Corp
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Filing: 1964-12-31
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Granted: 1967-02-14
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 William S August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:04
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/60; C; C03; C03C; C03C29/00; H01; H01B; H01B1/00; H10W72/00; H10W72/20; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/931; Y10S428/9335; Y10S428/941; Y10T; Y10T403/00; Y10T403/21; Y10T428/00; Y10T428/12; Y10T428/12361; Y10T428/12451; Y10T428/12493; Y10T428/12528; Y10T428/12535; Y10T428/12597; Y10T428/12611; Y10T428/1266; Y10T428/12667; Y10T428/12674; Y10T428/12771; Y10T428/12861; Y10T428/12889; Y10T428/12896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN ELECTRONIC DEVICE HAVING IMPROVED HIGH TEMPERATURE STABILITY, SAID DEVICE COMPRISING, IN COMBINATION, AT LEAST ONE ELECTRICALLY CONDUCTIVE LAYER AND A LAYER HAVING ELECTRICAL CONDUCTIVITY LOWER THAT OF SAID ELECTRICALLY CONDUCTIVE LAYERS AND FABRICATED OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF SEMI-CONDUCTIVE AND ELECTRICALLY INSULATIVE MATERIAL DISPOSED ON AND BONDED TO SAID ELECTRICALLY CONDUCTIVE LAYERS, AT LEAST ONE OF SAID ELECTRICALLY CONDUCTIVE LAYERS COMPRISING A SUBSTRATE OF AN OXIDATION HARDENED, HIGH TEMPERATURE SILVER BASE ALLOY CONTAINING ABOUT 0.1-2.0%, BY WEIGHT, OF MAGNESIUM OXIDE AND ESSENTIALLY THE REMAINDER BEING SILVER, SAID SUBSTRATE HAVING A LOW MODULUS OF ELASTICITY, A HIGH TENSILE STRENGTH AND A COEFFICIENT OF THERMAL EXPANSION SELECTED WITH RESPECT TO THAT OF THE LAYER OF REDUCED ELECTRICAL CONDUCTIVITY, WHEREBY THE DEVICE HAS IMPROVED REISISTANCE TO CRACKING UNDER WIDELY FLUCTUATING TEMPERATURE CONDITIONS.
Claim 2
Dependent Claim
133 words
AN ELECTRONIC DEVICE HAVING IMPROVED HIGH TEMPERATURE STABILITY, SAID DEVICE COMPRISING, IN COMBINATION, AT LEAST ONE ELECTRICALLY CONDUCTIVE LAYER AND A LAYER HAVING ELECTRICAL CONDUCTIVITY LOWER THAT OF SAID ELECTRICALLY CONDUCTIVE LAYERS AND FABRICATED OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF SEMI-CONDUCTIVE AND ELECTRICALLY INSULATIVE MATERIAL DISPOSED ON AND BONDED TO SAID ELECTRICALLY CONDUCTIVE LAYERS, AT LEAST ONE OF SAID ELECTRICALLY CONDUCTIVE LAYERS COMPRISING A SUBSTRATE OF AN OXIDATION HARDENED, HIGH TEMPERATURE SILVER BASE ALLOY CONTAINING ABOUT 0.1-2.0%, BY WEIGHT, OF MAGNESIUM OXIDE AND ESSENTIALLY THE REMAINDER BEING SILVER, SAID SUBSTRATE HAVING A LOW MODULUS OF ELASTICITY, A HIGH TENSILE STRENGTH AND A COEFFICIENT OF THERMAL EXPANSION SELECTED WITH RESPECT TO THAT OF THE LAYER OF REDUCED ELECTRICAL CONDUCTIVITY, WHEREBY THE DEVICE HAS IMPROVED REISISTANCE TO CRACKING UNDER WIDELY FLUCTUATING TEMPERATURE CONDITIONS.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |