Patent US3180747A successfully refreshed from Google Patents.
US3180747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective coating
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-08-03
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Granted: 1965-04-27
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Expires: 1981-08-03
Abstract
No abstract record available.
Inventors
- 👤 Robert H Patton
- 👤 James B Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:18
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; B; B27; B27K; B27K3/00; B27K3/16; B27K3/32; C01; C01B; C01B33/00; C01B33/20; C01B33/32; D; D21; D21H; D21H17/00; D21H17/63; D21H17/66; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A METHOD FOR PREPARING A LITHIUM SILICATE SOLUTION COMPRISING ADMIXING LITHIUM HYDROXIDE, A SILICA-CONTAINING MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICA GEL AND SILICIC ACID, AND WATER, WHILE AGITATING SAME; HEATING SAID ADMIXTURE WHILE CONTINUING THE AGITATION THEREOF TO A TEMPERATURE WITHIN THE RANGE FROM ABOUT 75* TO ABOUT 150*C. FOR A SUFFICIENT LENGTH OF TIME TO FORM SAID LITHIUM SILICATE; SAID LITHIUM HYDROXIDE AND SILICA-CONTAINING MATERIAL BEING EMPLOYED IN AN AMOUNT SUFFICIENT TO PROVIDE A RATIO OF LITHIUM OXIDE TO SILICON DIOXIDE WITHIN THE RANGE OF ABOUT 1.00 LI2O:ABOUT 2.0 TO ABOUT 6.3 SIO2 AND A TOTAL SOLIDS FROM ABOUT 10 PERCENT TO 45 PERCENT BY WEIGHT; AND COOLING SAID ADMIXTURE TO A TEMPERATURE WITHIN THE RANGE FROM 20* TO ABOUT 30*C. TO FORM AN AQUEOUS SOLUTION THEREOF.
Claim 2
Independent Claim
130 words
A METHOD FOR PREPARING A LITHIUM SILICATE SOLUTION COMPRISING ADMIXING LITHIUM HYDROXIDE, A SILICA-CONTAINING MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICA GEL AND SILICIC ACID, AND WATER, WHILE AGITATING SAME; HEATING SAID ADMIXTURE WHILE CONTINUING THE AGITATION THEREOF TO A TEMPERATURE WITHIN THE RANGE FROM ABOUT 75* TO ABOUT 150*C. FOR A SUFFICIENT LENGTH OF TIME TO FORM SAID LITHIUM SILICATE; SAID LITHIUM HYDROXIDE AND SILICA-CONTAINING MATERIAL BEING EMPLOYED IN AN AMOUNT SUFFICIENT TO PROVIDE A RATIO OF LITHIUM OXIDE TO SILICON DIOXIDE WITHIN THE RANGE OF ABOUT 1.00 LI2O:ABOUT 2.0 TO ABOUT 6.3 SIO2 AND A TOTAL SOLIDS FROM ABOUT 10 PERCENT TO 45 PERCENT BY WEIGHT; AND COOLING SAID ADMIXTURE TO A TEMPERATURE WITHIN THE RANGE FROM 20* TO ABOUT 30*C. TO FORM AN AQUEOUS SOLUTION THEREOF.
References Cited (Backward Citations)
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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) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |