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Patent US2923636A successfully refreshed from Google Patents.
US2923636A
Expired / Lapsed
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Glass-making frit and method
Assignee: OI Glass Inc
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Filing: 1959-04-06
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Granted: 1960-02-02
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Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Swain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:46
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/08; C03C4/085; C03C1/00; C03C1/10; C03C1/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A FRIT COMPOSITION COMPRISING A GRANULAR LIMESODA FLINT GLASS WHICH IS HIGHLY COLORANT ENRICHED AND WHICH CONSISTS ESSENTIALLY OF THE FOLLOWING INGREDIENTS IN THE INDICATED PERCENTAGES BY WEIGHT:
Claim 2
Dependent Claim
28 words
A FRIT COMPOSITION COMPRISING A GRANULAR LIMESODA FLINT GLASS WHICH IS HIGHLY COLORANT ENRICHED AND WHICH CONSISTS ESSENTIALLY OF THE FOLLOWING INGREDIENTS IN THE INDICATED PERCENTAGES BY WEIGHT:
References Cited (Backward Citations)
US2229416A
Cited
US2599349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |