Patent EP0596636A2 successfully refreshed from Google Patents.
Patent US2560593A successfully refreshed from Google Patents.
US2560593A
Expired / Lapsed
US
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Method of making a glass-to-metal seal
Assignee: Westinghouse Electric Corp
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Filing: 1945-05-04
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Granted: 1951-07-17
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Expires: 1965-05-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Pask
- 👤 John E Schiveree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:07
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2299689A
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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) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |