Patent US3193364A successfully refreshed from Google Patents.
US3193364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making electronic devices
Assignee: American Optical Corp
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Filing: 1960-05-20
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Granted: 1965-07-06
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Expires: 1980-05-20
Abstract
No abstract record available.
Inventors
- 👤 George A Granitsas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:31
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/04; B21C37/042; C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/025; C03B37/026; C03B37/10; C03B37/14; C03B37/15; H; H01; H01J; H01J31/00; H01J31/02; H01J31/06; H01J31/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
THE METHOD OF MAKING AN ELECTRONIC DEVICE OF THE CHARACTER DESCRIBED WHICH COMPRISES THE STEPS OF PROVIDING A TUBE OF GLASS MATERIAL WHICH IS ADAPTED TO BE DRAWN WHEN HEATED TO A DRAWING TEMPERATURE AND WHICH HAS A GIVEN COEFFICIENT OF THERMAL EXPANSION, PROVIDING A SUBSTANTIALLY EUTECTIC ALLOY OF GERMANIUM AND GOLD WHICH IS ADAPTED TO BE DRAWN WHEN HEATED TO SAID DRAWING TEMPERATURE AND WHICH HAS A NEGATIVE COEFFICIENT OF THERMAL EXPANSION COMPARED TO THE GLASS IN THE DRAWING TEMPERATURE RANGE AND A COEFFICIENT OF THERMAL EXPANSION CORRESPONDING TO THAT OF SAID GLASS MATERIAL IN THE NORMAL USEABLE TEMPERATURE RANGE, DISPOSING THE ALLOY WITHIN THE GLASS TUBE, HEATING THE TUBE AND ALLOY TO SAID DRAWING TEMPERATURE, AND DRAWING THE TUBE AND ALLOY SIMULTANEOUSLY IN THE SAME DIRECTION FOR FORMING A GLASS-COATED METALLIC FIBER.
Claim 2
Independent Claim
134 words
THE METHOD OF MAKING AN ELECTRONIC DEVICE OF THE CHARACTER DESCRIBED WHICH COMPRISES THE STEPS OF PROVIDING A TUBE OF GLASS MATERIAL WHICH IS ADAPTED TO BE DRAWN WHEN HEATED TO A DRAWING TEMPERATURE AND WHICH HAS A GIVEN COEFFICIENT OF THERMAL EXPANSION, PROVIDING A SUBSTANTIALLY EUTECTIC ALLOY OF GERMANIUM AND GOLD WHICH IS ADAPTED TO BE DRAWN WHEN HEATED TO SAID DRAWING TEMPERATURE AND WHICH HAS A NEGATIVE COEFFICIENT OF THERMAL EXPANSION COMPARED TO THE GLASS IN THE DRAWING TEMPERATURE RANGE AND A COEFFICIENT OF THERMAL EXPANSION CORRESPONDING TO THAT OF SAID GLASS MATERIAL IN THE NORMAL USEABLE TEMPERATURE RANGE, DISPOSING THE ALLOY WITHIN THE GLASS TUBE, HEATING THE TUBE AND ALLOY TO SAID DRAWING TEMPERATURE, AND DRAWING THE TUBE AND ALLOY SIMULTANEOUSLY IN THE SAME DIRECTION FOR FORMING A GLASS-COATED METALLIC FIBER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |