Patent US3142583A successfully refreshed from Google Patents.
US3142583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inorganic coating composition
Assignee: Individual
•
Filing: 1960-04-05
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Granted: 1964-07-28
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Expires: 1980-04-05
Abstract
No abstract record available.
Inventors
- 👤 Walter M Mcmahon
- 👤 Charles G Abba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:41
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B14/00; C04B14/02; C04B14/04; C04B14/20; C04B2111/00; C04B2111/00474; C04B2111/00482; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12104; Y10T428/12111; Y10T428/12493; Y10T428/12986; Y10T428/25; Y10T428/251
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
AN INORGANIC PROTECTIVE COATING COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF MICRONIZED MICA HAVING A PARTICLE SIZE OF ABOUT 3 TO ABOUT 10 MICRONS, A FINELY DIVIDED METAL PROTECTING PIGMENT, AND AS A FILM FORMER FOR SAID MICA AND METAL PIGMENT, AN ALKALI-STABILIZED COLLOIDAL SILICA IN THE FORM OF DISPERSED PARTICLES HAVING A PARTICLE SIZE OF 1 TO 100 MILLIMICRONS AND HAVING THE ALKALI SUBSTANTIALLY ALL OUTSIDE THE SILICA PARTICLES, THERE BEING PRESENT ABOUT 40% TO ABOUT 200% OF SAID MICA BY WEIGHT OF SAID SILICA AND ABOUT 5 TO ABOUT 10 PARTS OF SAID METAL PROTECTING PIGMENT FOR EACH PART OF SAID SILICA, AND METAL PROTECTING PIGMENT INCLUDING FINELY DIVIDED POWDERED METALS AND FINELY DIVIDED METAL OXIDES.
Claim 2
Dependent Claim
117 words
AN INORGANIC PROTECTIVE COATING COMPOSITION COMPRISING AN AQUEOUS DISPERSION OF MICRONIZED MICA HAVING A PARTICLE SIZE OF ABOUT 3 TO ABOUT 10 MICRONS, A FINELY DIVIDED METAL PROTECTING PIGMENT, AND AS A FILM FORMER FOR SAID MICA AND METAL PIGMENT, AN ALKALI-STABILIZED COLLOIDAL SILICA IN THE FORM OF DISPERSED PARTICLES HAVING A PARTICLE SIZE OF 1 TO 100 MILLIMICRONS AND HAVING THE ALKALI SUBSTANTIALLY ALL OUTSIDE THE SILICA PARTICLES, THERE BEING PRESENT ABOUT 40% TO ABOUT 200% OF SAID MICA BY WEIGHT OF SAID SILICA AND ABOUT 5 TO ABOUT 10 PARTS OF SAID METAL PROTECTING PIGMENT FOR EACH PART OF SAID SILICA, AND METAL PROTECTING PIGMENT INCLUDING FINELY DIVIDED POWDERED METALS AND FINELY DIVIDED METAL OXIDES.
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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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |