US3288584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a multicellular vitreous sheet on a molten metal bath
Assignee: Pittsburgh Corning LLC
•
Filing: 1964-04-29
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Granted: 1966-11-29
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Long Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:36
CPC Classifications
C; C03; C03B; C03B18/00; C03B18/02; C03B18/04; C03B18/12; C03B19/00; C03B19/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD OF MAKING A SHEET OF MULTICELLULAR VITREOUS MATERIAL FROM AN ADMIXTURE OF FINELY DIVIDED VITREOUS PARTICLES AND A CELLULATING AGENT WHICH COMPRISES, FEEDING SAID ADMIXTURE AT A CONTROLLED RATE ONTO THE SURFACE OF A MOLTEN METAL BATH, HEATING SAID ADMIXTURE ON SAID MOLTEN METAL BATH UNTIL SAID FINELY DIVIDED VITREOUS PARTICLES SOFTEN AND COALESCE AND SAID CELLULATING AGENT REACTS TO CELLULATE SAID ADMIXTURE, AND THEREAFTER COOLING SAID CELLULATED ADMIXTURE TO FORM A SHEET OF MULTICELLULAR VITREOUS MATERIAL.
Claim 2
Independent Claim
79 words
A METHOD OF MAKING A SHEET OF MULTICELLULAR VITREOUS MATERIAL FROM AN ADMIXTURE OF FINELY DIVIDED VITREOUS PARTICLES AND A CELLULATING AGENT WHICH COMPRISES, FEEDING SAID ADMIXTURE AT A CONTROLLED RATE ONTO THE SURFACE OF A MOLTEN METAL BATH, HEATING SAID ADMIXTURE ON SAID MOLTEN METAL BATH UNTIL SAID FINELY DIVIDED VITREOUS PARTICLES SOFTEN AND COALESCE AND SAID CELLULATING AGENT REACTS TO CELLULATE SAID ADMIXTURE, AND THEREAFTER COOLING SAID CELLULATED ADMIXTURE TO FORM A SHEET OF MULTICELLULAR VITREOUS MATERIAL.
References Cited (Backward Citations)
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |