Patent US3567507A successfully refreshed from Google Patents.
US3567507A
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US
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Encapsulated electronic component
Assignee: Vitramon Inc
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Filing: 1968-04-30
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Granted: 1971-03-02
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Expires: 1988-04-30
Abstract
Abstract A METHOD OF HERMETICALLY ENCAPSULATING ELECTRONIC COMPONENTS COMPRISING COATING LESS THAN ALL OF THE SURFACES WITH A FIRST REFRACTORY MATERIAL AND FRING THE COMPONENT TO GLAZE THE FIRST REFRACTORY MATERIAL; AND, COATING THE REMAINING SURFACES WITH A SECOND REFRACTORY MATERIAL HAVING A LOWER MELTING TEMPERATURE THAN THE FIRST REFRACTORY MATERIAL AND AGAIN FIRING THE COMPONENT TO GLAZE THE SECOND REFRACTORY MATERIAL.
Inventors
- 👤 Thomas F Cobb
- 👤 William R Belko Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:53
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/4572; C04B41/80; C04B41/81; Y; Y10; Y10T; Y10T428/00; Y10T428/20
Claims Analysis
Total Claims: 0
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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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |