Patent US3481781A successfully refreshed from Google Patents.
US3481781A
Expired / Lapsed
US
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Silicate glass coating of semiconductor devices
Assignee: RCA Corp
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Filing: 1967-03-17
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Granted: 1969-12-02
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Expires: 1987-03-17
Abstract
No abstract record available.
Inventors
- 👤 Werner Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:36
CPC Classifications
C; C03; C03C; C03C1/00; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/40; C23C16/401; C23D; C23D5/00; H; H10; H10P; H10P14/00; H10P14/60; H10P14/63; H10P14/6326; H10P14/6328; H10P14/6334; H10P14/66; H10P14/668; H10P14/6681; H10P14/6682; H10P14/69; H10P14/692; H10P14/6921; H10P14/6928; H10P14/6929; B; B05; B05D; B05D2490/00; B05D2490/50; H10P14/6922; H10P14/6923; Y; Y10; Y10S; Y10S148/00; Y10S148/043; Y10S148/118; Y10S148/173
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3019137A
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US3117832A
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US3330694A
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US3228812A
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US3306768A
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US3396052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |