US3319818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of cathode ray tubes for color television
Assignee: Corning Glass Works
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Filing: 1962-05-08
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Granted: 1967-05-16
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Expires: 1982-05-08
Abstract
No abstract record available.
Inventors
- 👤 William H Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:20
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/24; H01J5/00; H01J5/20; H01J5/22; H01J5/24; H01J9/00; H01J9/24; H01J9/26; H01J9/263; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0038; H01J2893/0039
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
THE METHOD OF FORMING A CATHODE RAY TUBE FOR COLOR TELEVISION RECEPTION WHICH COMPRISES THE STEPS OF PROVIDING A GLASS FUNNEL COMPONENT AND A GLASS FACE PLATE COMPONENT, SAID COMPONENTS HAVING GENERALLY COMPLEMENTARY ANNULAR SEAL EDGES, SEALING TOGETHER SAID FUNNEL COMPONENT AND SAID FACE PLATE COMPONENT BY APPLYING HEAT TO SAID EDGES TO SOFTEN SAID EDGES AND BRINGING SAID EDGES INTO CONTACT TO PRODUCE A FUSION SEAL THEREBETWEEN TO FORM A SINGLE HOLLOW GLASS ENVELOPE, SEPARATING SAID ENVELOPE TO FORM A FUNNEL PORTION AND A FACE PLATE PORTION, SAID PORTIONS HAVING COMPLEMENTARY ANNULAR SECOND SEAL EDGES, MOUNTING A COLOR-PRODUCING COMPONENT IN AT LEAST ONE OF SAID PORTIONS, INTERPOSING BETWEEN SAID SECOND SEAL EDGES A SEALING AGENT HAVING A SOFTENING TEMPERATURE LOWER THAN THAT OF SAID EDGES, HEATING SAID SEALING AGENT TO ITS SOFTENING TEMPERATURE, BRINGING SAID SECOND SEAL EDGES TOGETHER, AND COOLING SAID SEALING AGENT TO SEAL TOGETHER SAID FUNNEL PORTION AND SAID FACE PLATE PORTION.
Claim 2
Independent Claim
156 words
THE METHOD OF FORMING A CATHODE RAY TUBE FOR COLOR TELEVISION RECEPTION WHICH COMPRISES THE STEPS OF PROVIDING A GLASS FUNNEL COMPONENT AND A GLASS FACE PLATE COMPONENT, SAID COMPONENTS HAVING GENERALLY COMPLEMENTARY ANNULAR SEAL EDGES, SEALING TOGETHER SAID FUNNEL COMPONENT AND SAID FACE PLATE COMPONENT BY APPLYING HEAT TO SAID EDGES TO SOFTEN SAID EDGES AND BRINGING SAID EDGES INTO CONTACT TO PRODUCE A FUSION SEAL THEREBETWEEN TO FORM A SINGLE HOLLOW GLASS ENVELOPE, SEPARATING SAID ENVELOPE TO FORM A FUNNEL PORTION AND A FACE PLATE PORTION, SAID PORTIONS HAVING COMPLEMENTARY ANNULAR SECOND SEAL EDGES, MOUNTING A COLOR-PRODUCING COMPONENT IN AT LEAST ONE OF SAID PORTIONS, INTERPOSING BETWEEN SAID SECOND SEAL EDGES A SEALING AGENT HAVING A SOFTENING TEMPERATURE LOWER THAN THAT OF SAID EDGES, HEATING SAID SEALING AGENT TO ITS SOFTENING TEMPERATURE, BRINGING SAID SECOND SEAL EDGES TOGETHER, AND COOLING SAID SEALING AGENT TO SEAL TOGETHER SAID FUNNEL PORTION AND SAID FACE PLATE PORTION.
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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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |