Patent US2773775A successfully refreshed from Google Patents.
US2773775A
Expired / Lapsed
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Glass composition and batch therefor
Assignee: Libbey Owens Ford Glass Co
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Filing: 1953-12-21
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Granted: 1956-12-11
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Expires: 1973-12-21
Abstract
No abstract record available.
Inventors
- 👤 William C Levengood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:51
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A BATCH FOR MAKING SODA-LIME-SILICA GLASS, CONSISTING ESSENTIALLY OF THE STANDARD BATCH INGREDIENTS AND WHEREIN SODIUM CHLORIDE IS CRYSTALLIZED WITH THE SODA ASH CONTENT OF THE BATCH AND AMOUNTS TO SUBSTANTIALLY 0.6% TO 4.0% OF THE WEIGHT OF THE CRYSTALLIZED COMPOSITION.
Claim 2
Dependent Claim
41 words
A BATCH FOR MAKING SODA-LIME-SILICA GLASS, CONSISTING ESSENTIALLY OF THE STANDARD BATCH INGREDIENTS AND WHEREIN SODIUM CHLORIDE IS CRYSTALLIZED WITH THE SODA ASH CONTENT OF THE BATCH AND AMOUNTS TO SUBSTANTIALLY 0.6% TO 4.0% OF THE WEIGHT OF THE CRYSTALLIZED COMPOSITION.
References Cited (Backward Citations)
US2161711A
Cited
US2655452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |