US3317299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of changing the equilibrium thickness of a glass sheet being formed on a molten metal bath
Assignee: Compagnie de Saint Gobain SA
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Filing: 1963-07-31
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Granted: 1967-05-02
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Expires: 1983-07-31
Abstract
No abstract record available.
Inventors
- 👤 Bre Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:33
CPC Classifications
C; C03; C03B; C03B18/00; C03B18/02; C03B18/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF CONTROLLING THE THICKNESS OF SHEET GLASS PRODUCED BY DEPOSITING MOLTEN GLASS UPON A BATH OF MOLTEN METAL TO FORM AN INCIPIENT RIBBON, AND CONTINUOUSLY MOVING THE SAME OVER AND ALONG THE BATH WHILE ALLOWING THE RIBBON TO ATTAIN UNIFORM THICKNESS, COMPRISING, DEPOSITING ON AND ALONG THE EDGES ONLY OF THE RIBBON AND THE SURFACE OF THE BATH CONTIGUOUS THERETO, A MATERIAL WHICH AFFECTS THE SURFACE TENSION OF THE GLASS TO THEREBY CAUSE A CHANGE IN THE EQUILIBRIUM THICKNESS FROM THAT OTHERWISE RESULTING, SAID MATERIAL BEING STABLE AT THE TEMPERATURE TO WHICH IT IS SUBJECTED DURING THE METHOD.
Claim 2
Independent Claim
100 words
THE METHOD OF CONTROLLING THE THICKNESS OF SHEET GLASS PRODUCED BY DEPOSITING MOLTEN GLASS UPON A BATH OF MOLTEN METAL TO FORM AN INCIPIENT RIBBON, AND CONTINUOUSLY MOVING THE SAME OVER AND ALONG THE BATH WHILE ALLOWING THE RIBBON TO ATTAIN UNIFORM THICKNESS, COMPRISING, DEPOSITING ON AND ALONG THE EDGES ONLY OF THE RIBBON AND THE SURFACE OF THE BATH CONTIGUOUS THERETO, A MATERIAL WHICH AFFECTS THE SURFACE TENSION OF THE GLASS TO THEREBY CAUSE A CHANGE IN THE EQUILIBRIUM THICKNESS FROM THAT OTHERWISE RESULTING, SAID MATERIAL BEING STABLE AT THE TEMPERATURE TO WHICH IT IS SUBJECTED DURING THE METHOD.
References Cited (Backward Citations)
US2754559A
Cited
US3083551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |