Patent US2968126A successfully refreshed from Google Patents.
US2968126A
Expired / Lapsed
US
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Blowing frame for tempering glass sheets
Assignee: PPG Industries Inc
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Filing: 1956-06-18
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Granted: 1961-01-17
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Expires: 1976-06-18
Abstract
No abstract record available.
Inventors
- 👤 Ronald E Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:34
CPC Classifications
C; C03; C03B; C03B27/00; C03B27/04; C03B27/052; C03B27/0404; C03B27/0413; C03B27/044; C03B27/0442; C03B27/0447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB172946A
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US2131406A
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US2225521A
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US2271327A
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US2314525A
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GB586497A
Cited
FR953053A
Cited
US2677918A
Cited
US2746792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |