US3131460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding a crystal to a delay line
Assignee: Corning Glass Works
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Filing: 1959-11-09
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Granted: 1964-05-05
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Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Richard E Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:37
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/125; B; B23; B23K; B23K20/00; B23K20/22; B23K20/233; C; C04; C04B; C04B37/00; C04B37/003; C04B37/006; H01; H01B; H01B1/00; H10; H10N; H10N30/00; H10N30/01; H10N30/07; H10N30/072; H10N30/073; C04B2235/00; C04B2235/60; C04B2235/604; C04B2235/606; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/121; C04B2237/123; C04B2237/125; C04B2237/126; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/341; C04B2237/50; C04B2237/52; C04B2237/70; C04B2237/704; C04B2237/72; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/49018
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
169 words
A COLD DIFFUSION METHOD OF BONDING A PIEZOELECTRIC CRYSTAL FORMED OF MATERIAL SELECTED FROM THE GROUP CONSISTING OF CERAMIC AND QUARTZ, TO A DELAY LINE FORMED OF MATERIAL SELECTED FROM A GROUP CONSISTING OF FUSED SILICA, GLASS, AND CERAMIC COMPRISING THE STEPS OF DEPOSITING ON THE BROAD SURFACES OF SAID CRYSTAL A PLURALITY OF SUCCESSIVE METALLIC LAYERS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, NICKEL, NICKEL-CHROME, CHROME, GOLD AND INDIUM, DEPOSITING ON A FACET OF SAID DELAY LINE AT LEAST ONE METALLIC LAYER SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, NICKEL, NICKEL-CHROME, CHROME, GOLD AND INDIUM, SAID GOLD AND SAID INDIUM FORMING ONLY OUTER METALLIC LAYERS WITH ONE OF SAID OUTER METALLIC LAYERS BEING GOLD AND THE OTHER OUTER METALLIC LAYER BEING INDIUM, DISPOSING SAID GOLD LAYER ADJACENT SAID INDIUM LAYER, AND THEREAFTER HEATING THE ASSEMBLY SO FORMED TO A TEMPERATURE RANGING FROM ABOUT 125*C. TO 150*C. WHILE APPLYING A PRESSURE OF APPROXIMATELY 250 POUNDS PER SQUARE INCH TO SAID ASSEMBLY TO BOND SAID CRYSTAL TO SAID DELAY LINE.
References Cited (Backward Citations)
US2139469A
Cited
US2570248A
Cited
US2694168A
Cited
US2754238A
Cited
US2746140A
Cited
US2877431A
Cited
US2964839A
Cited
US2907935A
Cited
US3032869A
Cited
US2800710A
Cited
US3006067A
Cited
US3025479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |