US2807552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing a silicate paint vehicle
Assignee: Diamond Shamrock Corp
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Filing: 1953-04-17
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Granted: 1957-09-24
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Expires: 1973-04-17
Abstract
No abstract record available.
Inventors
- 👤 Edward A Robinson
- 👤 Jr Carl W Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:01
CPC Classifications
C; C04; C04B; C04B12/00; C04B12/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A METHOD FOR PREPARING A SILICATE PAINT VEHICLE, WHICH INCLUDES THE REACTION OF AN ALKALI METAL SILICATE TO FORM SILICIC ACID AND THE COMBINATION THEREWITH OF FURTHER ALKALI METAL SILICATE, THE IMPROVEMENT WHICH COMPRISES DILUTING AN ALKALI METAL SILICATE WITH WATER AND ADDING THIS DILUTE SILICATE SOLUTION TO A SUFFICIENT QUANTITY OF STRONG MINERAL ACID TO PRODUCE A SILICA SOL, MAINTAINING SAID ACID SOLUTION AT A PH BELOW 3 AT ALL TIMES DURING THE ADDITION, ADDING SAID ACID SOLUTION TO A SOLUTION OF ALKALI METAL SILICATE WHILE MAINTAINING THE PH OF SAID SOLUTION OF ALKALI METAL SILICATE AT ALL TIME DURING THE ADDITION, AT A PH ABOVE ABOUT 9.
Claim 2
Dependent Claim
110 words
IN A METHOD FOR PREPARING A SILICATE PAINT VEHICLE, WHICH INCLUDES THE REACTION OF AN ALKALI METAL SILICATE TO FORM SILICIC ACID AND THE COMBINATION THEREWITH OF FURTHER ALKALI METAL SILICATE, THE IMPROVEMENT WHICH COMPRISES DILUTING AN ALKALI METAL SILICATE WITH WATER AND ADDING THIS DILUTE SILICATE SOLUTION TO A SUFFICIENT QUANTITY OF STRONG MINERAL ACID TO PRODUCE A SILICA SOL, MAINTAINING SAID ACID SOLUTION AT A PH BELOW 3 AT ALL TIMES DURING THE ADDITION, ADDING SAID ACID SOLUTION TO A SOLUTION OF ALKALI METAL SILICATE WHILE MAINTAINING THE PH OF SAID SOLUTION OF ALKALI METAL SILICATE AT ALL TIME DURING THE ADDITION, AT A PH ABOVE ABOUT 9.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |