US2644742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and charge for manufacturing sodium silicate glasses
Assignee: Diamond Shamrock Corp
•
Filing: 1950-02-24
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Granted: 1953-07-07
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Expires: 1970-02-24
Abstract
No abstract record available.
Inventors
- 👤 Robert C Danison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:18
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A CHARGE FOR A SODIUM SILICATE FURNACE ADAPTED UPON FUSION TO YIELD A SODIUM SILICATE GLASS HAVING A MOL RATIO OF NA2O TO SIO2 OF 1:1 TO 1:37 COMPRISING SILICA, A SUBSTANCE CHOSEN FROM THE GROUP CONSISTING OF SODA ASH, CAUSTIC SODA, AND SODIUM BICARBONATE, AND A SMALL AMOUNT OF A LIGHT MINERAL OIL.
Claim 2
Dependent Claim
54 words
A CHARGE FOR A SODIUM SILICATE FURNACE ADAPTED UPON FUSION TO YIELD A SODIUM SILICATE GLASS HAVING A MOL RATIO OF NA2O TO SIO2 OF 1:1 TO 1:37 COMPRISING SILICA, A SUBSTANCE CHOSEN FROM THE GROUP CONSISTING OF SODA ASH, CAUSTIC SODA, AND SODIUM BICARBONATE, AND A SMALL AMOUNT OF A LIGHT MINERAL OIL.
References Cited (Backward Citations)
US130538A
Cited
US667222A
Cited
US726091A
Cited
US1861711A
Cited
US2284248A
Cited
US2345776A
Cited
US2390406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |