Patent US2988852A successfully refreshed from Google Patents.
US2988852A
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Method of thermally sealing hollow glass articles at minimal temperatures
Assignee: OI Glass Inc
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Filing: 1957-12-11
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Granted: 1961-06-20
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Expires: 1977-12-11
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:33
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/40; C; C03; C03B; C03B23/00; C03B23/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2736143A
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US2031660A
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US2389360A
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US2649993A
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US2694273A
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US2648179A
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US2775028A
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US2688824A
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US2784462A
Cited
US2894294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |