Patent US2935422A successfully refreshed from Google Patents.
US2935422A
Expired / Lapsed
US
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Corrosion preventing coatings and coating compositions
Assignee: Poor and Co
•
Filing: 1955-10-28
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Granted: 1960-05-03
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Expires: 1975-10-28
Abstract
No abstract record available.
Inventors
- 👤 Allan E Chester
- 👤 Joseph P Stella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:50
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C23; C23D; C23D5/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PROCESS OF PROTECTING A METALLIC ARTICLE NORMALLY SUSCEPTIBLE TO CORROSION WHICH COMPRISES APLYING TO SAID ARTICLE IN THE ORDER NAMED A VITREOUS ENAMEL COATING AND A PREDOMINANTLY THERMOPLASTIC POLYVINYL RESINOUS COATING CONTAINING A MINOR PROPORTION OF A TETRAALKYLORTHO SILICATE CAPABLE OF BEING HYDROLYZED TO COLLOIDAL SILICA, SAID SILICATE BEING ADMIXED WITH SAID RESINOUS COATING IN AN
Claim 2
Dependent Claim
57 words
A PROCESS OF PROTECTING A METALLIC ARTICLE NORMALLY SUSCEPTIBLE TO CORROSION WHICH COMPRISES APLYING TO SAID ARTICLE IN THE ORDER NAMED A VITREOUS ENAMEL COATING AND A PREDOMINANTLY THERMOPLASTIC POLYVINYL RESINOUS COATING CONTAINING A MINOR PROPORTION OF A TETRAALKYLORTHO SILICATE CAPABLE OF BEING HYDROLYZED TO COLLOIDAL SILICA, SAID SILICATE BEING ADMIXED WITH SAID RESINOUS COATING IN AN
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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) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |