Patent US3669698A successfully refreshed from Google Patents.
US3669698A
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US
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Seal glasses
Assignee: General Electric Co
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Filing: 1969-12-29
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Granted: 1972-06-13
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Expires: 1989-12-29
Abstract
Abstract SEAL GLASS COMPOSITIONS DIRECTLY SEALABLE TO TANTALUM AND SUITABLE FOR USE AS PARTS OF HERMETICALLY SEALED TANTALUM ELECTROLYTIC CAPACITORS, INCLUDING AN EFFECTIVE AMOUNT OF CHROMIC OXIDE.
Inventors
- 👤 William A Graf
- 👤 Jaroslaw Kohut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:38
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/02; C03C3/00; C03C3/04; C03C3/076; C03C3/089; C03C3/091; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/131
Claims Analysis
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |