US3140164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing sheet glass
Assignee: G B D Holding SA
•
Filing: 1960-05-03
•
Granted: 1964-07-07
•
Expires: 1980-05-03
Abstract
No abstract record available.
Inventors
- 👤 Long Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:36
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/14; C03B35/22; C03B35/24; C03B35/246; C03B17/00; C03B17/06; C03B17/061; C03B17/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
FOR USE WITH A TANK FURNACE HAVING AN OUTLET FROM WHICH FLOWS A MASS OF MOLTEN GLASS, AN APPARATUS FOR PRODUCING A FLAT SHEET OF GLASS COMPRISING, IN COMBINATION: A POROUS TROUGH OF CARBONACEOUS MATERIAL EXTENDING OUTWARDLY FROM THE OUTLET OF THE TANK FURNACE AND POSITIONED TO RECEIVE THE MASS OF MOLTEN GLASS ISSUING THEREFROM, SAID TROUGH FORMING A FLAT, SUBSTANTIALLY HORIZONTAL BOTTOM AND LONGITUDINALLY EXTENDING CONTINUOUS AND GENERALLY PARALLEL UPSTANDING LEDGES TO CONFINE THE FLOW OF SAID MASS OF MOLTEN GLASS BETWEEN THEM; MEANS FORMING A CHAMBER SURROUNDING SAID TROUGH; SUPPLY MEANS CONNECTED TO SAID CHAMBER FOR ADMITTING A NONOXIDIZING GAS INTO SAID CHAMBER;
Claim 2
Dependent Claim
105 words
FOR USE WITH A TANK FURNACE HAVING AN OUTLET FROM WHICH FLOWS A MASS OF MOLTEN GLASS, AN APPARATUS FOR PRODUCING A FLAT SHEET OF GLASS COMPRISING, IN COMBINATION: A POROUS TROUGH OF CARBONACEOUS MATERIAL EXTENDING OUTWARDLY FROM THE OUTLET OF THE TANK FURNACE AND POSITIONED TO RECEIVE THE MASS OF MOLTEN GLASS ISSUING THEREFROM, SAID TROUGH FORMING A FLAT, SUBSTANTIALLY HORIZONTAL BOTTOM AND LONGITUDINALLY EXTENDING CONTINUOUS AND GENERALLY PARALLEL UPSTANDING LEDGES TO CONFINE THE FLOW OF SAID MASS OF MOLTEN GLASS BETWEEN THEM; MEANS FORMING A CHAMBER SURROUNDING SAID TROUGH; SUPPLY MEANS CONNECTED TO SAID CHAMBER FOR ADMITTING A NONOXIDIZING GAS INTO SAID CHAMBER;
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |