Patent GB515212A successfully refreshed from Google Patents.
US3035372A
Expired / Lapsed
US
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Method for making a glass to metal seal
Assignee: Philips Electronics and Pharmaceutical Industries Corp
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Filing: 1957-04-05
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Granted: 1962-05-22
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Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
- 👤 Karl F Mayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:32
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/32; H01J5/40; H01J2893/00; H01J2893/0033; H01J2893/0034; H01J2893/0035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1016320A
Cited
US1456110A
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US2238599A
Cited
GB475665A
Cited
US2279168A
Cited
GB604248A
Cited
US2345278A
Cited
US2558878A
Cited
US2549504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |