US3013898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating painted surfaces with a silica sol
Assignee: EIDP Inc
•
Filing: 1958-09-19
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Granted: 1961-12-19
•
Expires: 1978-09-19
Abstract
No abstract record available.
Inventors
- 👤 Donald F Dempcy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:14
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; Y; Y10; Y10S; Y10S516/00; Y10S516/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A PROCESS FOR COATING A SCORCHABLE SURFACE WITH SILICA THE STEPS COMPRISING HEATING THE SURFACE TO A TEMPERATURE BETWEEN 80*C. AND ITS SCORCHING POINT, BRINGING THE SURFACE WHILE SO HEATED INTO CONTACT WITH A SILICA SOL HAVING A PH BELOW ABOUT 4.2, THE SILICA PARTICLES IN THE SOL BEING SUBSTANTIALLY DISCRETE AND IN THE SIZE RANGE OF 5 TO 30 MILLIMICRONS, TO FORM A COATING ON THE SURFACE, AND DRYING SAID COATING UPON THE SURFACE, AND BAKING THE DRIED COATING AT A TEMPERATURE BETWEEN 121*C. AND THE SCORCHING POINT OF THE SURFACE.
Claim 2
Dependent Claim
93 words
IN A PROCESS FOR COATING A SCORCHABLE SURFACE WITH SILICA THE STEPS COMPRISING HEATING THE SURFACE TO A TEMPERATURE BETWEEN 80*C. AND ITS SCORCHING POINT, BRINGING THE SURFACE WHILE SO HEATED INTO CONTACT WITH A SILICA SOL HAVING A PH BELOW ABOUT 4.2, THE SILICA PARTICLES IN THE SOL BEING SUBSTANTIALLY DISCRETE AND IN THE SIZE RANGE OF 5 TO 30 MILLIMICRONS, TO FORM A COATING ON THE SURFACE, AND DRYING SAID COATING UPON THE SURFACE, AND BAKING THE DRIED COATING AT A TEMPERATURE BETWEEN 121*C. AND THE SCORCHING POINT OF THE SURFACE.
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) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |