US3413187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass bonding medium for ultrasonic devices
Assignee: AT&T Inc
•
Filing: 1966-03-31
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Granted: 1968-11-26
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Expires: 1986-03-31
Abstract
No abstract record available.
Inventors
- 👤 John T Krause
- 👤 William R Northover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:19
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/02; C; C03; C03C; C03C3/00; C03C3/32; C03C3/321; C03C8/00; C03C8/24; H; H03; H03H; H03H9/00; H03H9/02; H03H9/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN ULTRASONIC DEVICE COMPRISING A SOLID ELECTRODE METAL FILM ADHESIVELY BONDED TO A MEMBER SELECTED FROM THE GROUP CONSISTING OF QUARTZ, FUSED SILICA AND A LEAD-SILICA GLASS, SAID ADHESIVE COMPRISING A GLASS HAVING A COMPOSITION LYING WITHIN A REGION OF THE TERNARY PHASE DIAGRAM FOR ARSENIC-SULFUR-SELENIUM WHICH IS BOUNDED BY LINES JOINING THE FOLLOWING POINTS IN SEQUENCE: 35% SULFUR, 65% SELNIUM 35% SULFUR, 47% SELENIUM, 18% ARSENIC 62% SULFUR, 20% SELENIUM, 18% ARSENIC 75% SULFUR, 20% SELENIUM, 5% ARSENIC 45% SULFUR, 55% SELENIUM.
Claim 2
Dependent Claim
83 words
AN ULTRASONIC DEVICE COMPRISING A SOLID ELECTRODE METAL FILM ADHESIVELY BONDED TO A MEMBER SELECTED FROM THE GROUP CONSISTING OF QUARTZ, FUSED SILICA AND A LEAD-SILICA GLASS, SAID ADHESIVE COMPRISING A GLASS HAVING A COMPOSITION LYING WITHIN A REGION OF THE TERNARY PHASE DIAGRAM FOR ARSENIC-SULFUR-SELENIUM WHICH IS BOUNDED BY LINES JOINING THE FOLLOWING POINTS IN SEQUENCE: 35% SULFUR, 65% SELNIUM 35% SULFUR, 47% SELENIUM, 18% ARSENIC 62% SULFUR, 20% SELENIUM, 18% ARSENIC 75% SULFUR, 20% SELENIUM, 5% ARSENIC 45% SULFUR, 55% SELENIUM.
References Cited (Backward Citations)
US3173100A
Cited
US3241986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |