US3179732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1962-07-25
•
Granted: 1965-04-20
•
Expires: 1982-07-25
Abstract
No abstract record available.
Inventors
- 👤 Touvay Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:09
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/02; H05B3/03; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
AN ELECTRODE FOR A GLASS FURNACE COMPRISING A TUBE OF GRAPHITE, A PLUG OF REFRACTORY MATERIAL SUBSTANTIALLY FILLING THE TUBE, THE MEAN DENSITY PER UNIT LENGTH OF THE GRAPHITE AND REFRACTORY MATERIAL BEING SUBSTANTIALLY EQUAL TO THE DENSITY OF MOLTEN GLASS MELTED IN A FURNACE-EQUIPPED WITH SAID ELECTRODE.
Claim 2
Dependent Claim
48 words
AN ELECTRODE FOR A GLASS FURNACE COMPRISING A TUBE OF GRAPHITE, A PLUG OF REFRACTORY MATERIAL SUBSTANTIALLY FILLING THE TUBE, THE MEAN DENSITY PER UNIT LENGTH OF THE GRAPHITE AND REFRACTORY MATERIAL BEING SUBSTANTIALLY EQUAL TO THE DENSITY OF MOLTEN GLASS MELTED IN A FURNACE-EQUIPPED WITH SAID ELECTRODE.
References Cited (Backward Citations)
US1880540A
Cited
US2693498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |