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US2786307A
Expired / Lapsed
US
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Method of making glass-to-metal seals
Assignee: OI Glass Inc
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Filing: 1953-05-18
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Granted: 1957-03-26
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Expires: 1973-05-18
Abstract
No abstract record available.
Inventors
- 👤 Leslie F Pither
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:48
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2254945A
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US2301741A
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US2300454A
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US2542043A
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US2629093A
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US2596694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |