US2561818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic method of protecting the wall of a glass furnace
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1947-08-05
•
Granted: 1951-07-24
•
Expires: 1967-08-05
Abstract
No abstract record available.
Inventors
- 👤 Peyches Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:12
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/167; C03B5/1672; C03B5/1677
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
THE METHOD OF PROTECTING THE REFRACTORY WALL OF GLASS FURNACE AGAINST THE ACTION OF A GLASS BATH THAT CONSISTS IN CONSTRUCTING THE FURNACE WALL OF ELECTRICALLY CONDUCTIVE REFRACTORY MATERIAL, MELTING GLASS IN THE FURNACE, AND PASS-
Claim 2
Independent Claim
36 words
THE METHOD OF PROTECTING THE REFRACTORY WALL OF GLASS FURNACE AGAINST THE ACTION OF A GLASS BATH THAT CONSISTS IN CONSTRUCTING THE FURNACE WALL OF ELECTRICALLY CONDUCTIVE REFRACTORY MATERIAL, MELTING GLASS IN THE FURNACE, AND PASS-
References Cited (Backward Citations)
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US1543905A
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US1785888A
Cited
US1815978A
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US2098812A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |