Patent US3243275A successfully refreshed from Google Patents.
US3243275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing glass sheet
Assignee: Corning Glass Works
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Filing: 1962-08-15
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Granted: 1966-03-29
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Expires: 1982-08-15
Abstract
No abstract record available.
Inventors
- 👤 Donald N Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:56
CPC Classifications
C; C03; C03B; C03B18/00; C03B18/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
79 words
IMPROVED APPARATUS FOR PRODUCING SHEET GLASS COMPRISING, A TANK CONTAINING A BATH OF MOLTEN MATERIAL INERT TO THE GLASS BEING FORMED, MEANS POSITIONED WITHIN SAID BATH FOR FORMING SHEET GLASS BELOW THE SURFACE OF SAID MOLTEN BATH FROM STREAM-FED MOLTEN GLASS DELIVERED THERETO, MEANS COOPERATING WITH SAID TANK FOR DOWNWARDLY STREAM FEEDING MOLTEN GLASS BELOW THE SURFACE OF SAID BATH AND TO SAID FORMING MEANS, AND MEANS FOR REGULATING THE TEMPERATURE OF SAID MOLTEN BATH AND SAID FORMING MEANS.
Claim 2
Dependent Claim
79 words
IMPROVED APPARATUS FOR PRODUCING SHEET GLASS COMPRISING, A TANK CONTAINING A BATH OF MOLTEN MATERIAL INERT TO THE GLASS BEING FORMED, MEANS POSITIONED WITHIN SAID BATH FOR FORMING SHEET GLASS BELOW THE SURFACE OF SAID MOLTEN BATH FROM STREAM-FED MOLTEN GLASS DELIVERED THERETO, MEANS COOPERATING WITH SAID TANK FOR DOWNWARDLY STREAM FEEDING MOLTEN GLASS BELOW THE SURFACE OF SAID BATH AND TO SAID FORMING MEANS, AND MEANS FOR REGULATING THE TEMPERATURE OF SAID MOLTEN BATH AND SAID FORMING MEANS.
Claim 3
Independent Claim
60 words
A METHOD OF PRODUCING SHEET GLASS AND THE LIKE HAVING A SURFACE FINISH AS FORMED EQUIVALENT TO THAT OF A FIRE FINISH WHICH COMPRISES, STREAM FEEDING MOLTEN GLASS INTO A MOLTEN BATH HAVING A MELTING TEMPERATURE BELOW THE SOFTENING TEMPERATURE OF SUCH GLASS, AND ROLL-FORMING SHEET GLASS WITHIN AND BELOW THE SURFACE OF SUCH BATH FROM SUCH STREAM-FED MOLTEN GLASS.
Claim 4
Independent Claim
60 words
A METHOD OF PRODUCING SHEET GLASS AND THE LIKE HAVING A SURFACE FINISH AS FORMED EQUIVALENT TO THAT OF A FIRE FINISH WHICH COMPRISES, STREAM FEEDING MOLTEN GLASS INTO A MOLTEN BATH HAVING A MELTING TEMPERATURE BELOW THE SOFTENING TEMPERATURE OF SUCH GLASS, AND ROLL-FORMING SHEET GLASS WITHIN AND BELOW THE SURFACE OF SUCH BATH FROM SUCH STREAM-FED MOLTEN GLASS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |