US3028340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of new compositions from glyoxal and alkali metal silicates
Assignee: Nobel Bozel SA
•
Filing: 1957-07-22
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Granted: 1962-04-03
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Expires: 1977-07-22
Abstract
No abstract record available.
Inventors
- 👤 Gandon Louis
- 👤 Rene L Lehmann
- 👤 Henri G L Marcheguet
- 👤 Francis P M Tarbouriech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:01
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/008; Y; Y10; Y10S; Y10S8/00; Y10S8/17
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
THE PROCESS OF PRODUCTION OF A SILICIA-CONTAINING HYDROSOL FROM SODIUM SILICATE IN AN AQUEOUS MEDIUM, COMPRISING THE STEP OF MIXING TOGETHER GLYOXAL AND A SODIUM SILICATE AQUEOUS SOLUTION AT A TEMPERATURE OF FROM 10 TO 30* C., SAID GLUOXAL BEING EMPLOYED IN AN AMOUNT OF FROM 1.7 TO 48 PARTS BY WEIGHT RECKONED AS 100 PERCENT GLUOXAL IN THE FORM OF A WATER-CONTAINING GLUOXAL WHICH HAS A 100 PERCENT GLUOXAL CONTENT OF FROM 30 TO 82 PERCENT BY WEIGHT, WHILE SAID SODIUM SILICATE AQUEOUS SOLUTION IS EMPLOYED IN AN AMOUNT OF 100 PARTS BY WEIGHT HAS A STRENGTH OF FROM 35 TO 50* BE''. AND CONTAINS SIO2 AND NA2O IN A MOLECULAR PROPORTION OF 3:1 TO 4:1
Claim 2
Dependent Claim
117 words
THE PROCESS OF PRODUCTION OF A SILICIA-CONTAINING HYDROSOL FROM SODIUM SILICATE IN AN AQUEOUS MEDIUM, COMPRISING THE STEP OF MIXING TOGETHER GLYOXAL AND A SODIUM SILICATE AQUEOUS SOLUTION AT A TEMPERATURE OF FROM 10 TO 30* C., SAID GLUOXAL BEING EMPLOYED IN AN AMOUNT OF FROM 1.7 TO 48 PARTS BY WEIGHT RECKONED AS 100 PERCENT GLUOXAL IN THE FORM OF A WATER-CONTAINING GLUOXAL WHICH HAS A 100 PERCENT GLUOXAL CONTENT OF FROM 30 TO 82 PERCENT BY WEIGHT, WHILE SAID SODIUM SILICATE AQUEOUS SOLUTION IS EMPLOYED IN AN AMOUNT OF 100 PARTS BY WEIGHT HAS A STRENGTH OF FROM 35 TO 50* BE''. AND CONTAINS SIO2 AND NA2O IN A MOLECULAR PROPORTION OF 3:1 TO 4:1
Claim 3
Dependent Claim
34 words
A HYDROSOL WHICH CONTAINS BY WEIGHT FROM 3 TO 25 PERCENT OF SIO2, FROM 1 TO 7.5 PERCENT OF NA23 AND FROM 0.4 TO 7.3 PERCENT OF CHO-CHO, THE REMAINDER SUBSTANTIALLY CONSISTING OF WATER.
Claim 4
Dependent Claim
34 words
A HYDROSOL WHICH CONTAINS BY WEIGHT FROM 3 TO 25 PERCENT OF SIO2, FROM 1 TO 7.5 PERCENT OF NA23 AND FROM 0.4 TO 7.3 PERCENT OF CHO-CHO, THE REMAINDER SUBSTANTIALLY CONSISTING OF WATER.
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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) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |