Patent US2780032A successfully refreshed from Google Patents.
US2780032A
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US
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Improvements in apparatus for the continuous drawing of glass sheets
Assignee: Compagnies Reunies des Glaces et Verres Speciaux du Nord de la France
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Filing: 1953-02-05
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Granted: 1957-02-05
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Expires: 1973-02-05
Abstract
No abstract record available.
Inventors
- 👤 Long Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:19
CPC Classifications
C; C03; C03B; C03B15/00; C03B15/02; C03B15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1645053A
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US1879698A
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US1953341A
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US2125914A
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US2258118A
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US2274986A
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US2598893A
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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) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |